$CAAS
CHINA AUTOMOTIVE SYSTEMS INC Stock $caas

$caas Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-K Financial Statement

#000114420419016630 Filed on March 28, 2019

Income Statement

Concept	2018 Q4	2018	2017 Q4
Revenue	$124.3M	$496.2M	$143.7M
YoY Change	-13.5%	-0.58%	-3.94%
Cost Of Revenue	$112.9M	$430.7M	$127.3M
YoY Change	-11.31%	3.94%	-0.39%
Gross Profit	$11.40M	$65.41M	$16.50M
YoY Change	-30.91%	-22.71%	-24.31%
Gross Profit Margin	9.17%	13.18%	11.48%
Selling, General & Admin	$12.10M	$19.76M	$12.30M
YoY Change	-1.63%	1.12%	26.8%
% of Gross Profit	106.14%	30.21%	74.55%
Research & Development	$10.20M	$33.55M	$9.900M
YoY Change	3.03%	0.02%	11.24%
% of Gross Profit	89.47%	51.29%	60.0%
Depreciation & Amortization	$3.230M	$16.82M	$4.430M
YoY Change	-27.09%	9.49%	38.44%
% of Gross Profit	28.33%	25.71%	26.85%
Operating Expenses	$22.30M	$72.26M	$22.10M
YoY Change	0.9%	-1.01%	18.82%
Operating Profit	-$10.90M	-$2.908M	-$5.600M
YoY Change	94.64%	-115.09%	-275.0%
Interest Expense	-$300.0K	$2.928M	-$200.0K
YoY Change	50.0%	67.03%	-200.0%
% of Operating Profit
Other Income/Expense, Net	$700.0K	$600.0K	$600.0K
YoY Change	16.67%	200.0%
Pretax Income	-$9.600M	-$2.501M	-$3.600M
YoY Change	166.67%	-112.27%	-170.59%
Income Tax	-$2.600M	-$1.465M	-$800.0K
% Of Pretax Income
Net Earnings	-$3.200M	$2.377M	-$39.00M
YoY Change	-91.79%	-112.29%	-772.41%
Net Earnings / Revenue	-2.57%	0.48%	-27.14%
Basic Earnings Per Share		$0.08
Diluted Earnings Per Share	-$101.3K	$0.08	-$1.234M
COMMON SHARES
Basic Shares Outstanding	31.64M shares	31.64M
Diluted Shares Outstanding		31.65M

Balance Sheet

Concept	2018 Q4	2018	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$103.9M	$103.9M	$94.10M
YoY Change	10.41%	10.41%	52.76%
Cash & Equivalents	$86.35M	$86.30M	$64.56M
Short-Term Investments	$17.50M	$17.50M	$29.60M
Other Short-Term Assets	$35.09M	$47.20M	$65.10M
YoY Change	-46.09%	-27.5%	31.52%
Inventory	$88.02M	$88.00M	$79.22M
Prepaid Expenses
Receivables	$237.5M	$237.5M	$275.0M
Other Receivables	$18.80M	$18.80M	$19.10M
Total Short-Term Assets	$495.4M	$495.4M	$532.6M
YoY Change	-6.98%	-6.98%	11.43%
LONG-TERM ASSETS
Property, Plant & Equipment	$129.9M	$129.9M	$126.0M
YoY Change	3.03%	3.1%	24.2%
Goodwill
YoY Change
Intangibles	$605.0K		$661.0K
YoY Change	-8.47%		7.13%
Long-Term Investments	$32.60M	$32.60M	$27.60M
YoY Change	18.12%	18.12%	68.29%
Other Assets	$32.60M	$30.20M	$28.30M
YoY Change	15.19%	6.71%	13.2%
Total Long-Term Assets	$195.1M	$195.1M	$184.8M
YoY Change	5.58%	5.57%	20.18%
TOTAL ASSETS
Total Short-Term Assets	$495.4M	$495.4M	$532.6M
Total Long-Term Assets	$195.1M	$195.1M	$184.8M
Total Assets	$690.5M	$690.5M	$717.4M
YoY Change	-3.75%	-3.75%	13.56%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$129.1M	$129.1M	$156.4M
YoY Change	-17.46%	-17.46%	7.94%
Accrued Expenses	$47.03M	$26.80M	$40.13M
YoY Change	17.21%	9.84%	11.83%
Deferred Revenue	$800.0K
YoY Change
Short-Term Debt	$142.0M	$142.0M	$300.0K
YoY Change	47233.33%	-9.32%	-99.75%
Long-Term Debt Due			$7.000M
YoY Change			45.83%
Total Short-Term Liabilities	$341.3M	$341.3M	$373.5M
YoY Change	-8.61%	-8.62%	15.03%
LONG-TERM LIABILITIES
Long-Term Debt	$300.0K	$300.0K	$300.0K
YoY Change	0.0%	0.0%	-50.0%
Other Long-Term Liabilities	$5.852M	$39.90M	$33.10M
YoY Change	-82.32%	20.54%	10933.33%
Total Long-Term Liabilities	$5.852M	$40.20M	$33.40M
YoY Change	-82.48%	20.36%	3611.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$341.3M	$341.3M	$373.5M
Total Long-Term Liabilities	$5.852M	$40.20M	$33.40M
Total Liabilities	$385.7M	$404.6M	$411.2M
YoY Change	-6.22%	-3.18%	26.22%
SHAREHOLDERS EQUITY
Retained Earnings
YoY Change
Common Stock	$64.43M		$64.41M
YoY Change	0.04%		-0.55%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.953M		$2.907M
YoY Change	1.58%		0.0%
Treasury Stock Shares	$711.7K		$694.3K
Shareholders Equity	$285.9M	$285.9M	$299.4M
YoY Change
Total Liabilities & Shareholders Equity	$690.5M	$690.5M	$717.4M
YoY Change	-3.75%	-3.75%	13.56%

Cashflow Statement

Concept	2018 Q4	2018	2017 Q4
OPERATING ACTIVITIES
Net Income	-$3.200M	$2.377M	-$39.00M
YoY Change	-91.79%	-112.29%	-772.41%
Depreciation, Depletion And Amortization	$3.230M	$16.82M	$4.430M
YoY Change	-27.09%	9.49%	38.44%
Cash From Operating Activities	$3.520M	$12.53M	$7.100M
YoY Change	-50.42%	-74.38%	-668.0%
INVESTING ACTIVITIES
Capital Expenditures	-$1.650M	$25.76M	-$8.110M
YoY Change	-79.65%	-4.92%	-35.28%
Acquisitions
YoY Change
Other Investing Activities	$6.400M	$28.41M	$11.25M
YoY Change	-43.11%	-241.91%	78.57%
Cash From Investing Activities	$4.740M	$2.453M	$3.130M
YoY Change	51.44%	-105.18%	-150.24%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-13.57M	10.12M	-1.900M
YoY Change	614.21%	-64.44%	-315.91%
NET CHANGE
Cash From Operating Activities	3.520M	12.53M	7.100M
Cash From Investing Activities	4.740M	2.453M	3.130M
Cash From Financing Activities	-13.57M	10.12M	-1.900M
Net Change In Cash	-5.310M	25.10M	8.330M
YoY Change	-163.75%	-16.46%	-226.21%
FREE CASH FLOW
Cash From Operating Activities	$3.520M	$12.53M	$7.100M
Capital Expenditures	-$1.650M	$25.76M	-$8.110M
Free Cash Flow	$5.170M	-$13.24M	$15.21M
YoY Change	-66.01%	-160.72%	34.84%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	86346000
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	64558000
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	29623000
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	31535000
CY2018Q4	us-gaap	Short Term Investments ShortTermInvestments	17543000
CY2017Q4	us-gaap	Short Term Investments ShortTermInvestments	29587000
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	16270000
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	12790000
CY2018Q4	us-gaap	Assets Current AssetsCurrent	495428000
CY2017Q4	us-gaap	Assets Current AssetsCurrent	532603000
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	605000
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	661000
CY2018Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	1799000
CY2017Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	2188000
CY2018Q4	caas	Advance Payments For Property Plant And Equipment AdvancePaymentsForPropertyPlantAndEquipment	6135000
CY2017Q4	caas	Advance Payments For Property Plant And Equipment AdvancePaymentsForPropertyPlantAndEquipment	9657000
CY2018Q4	caas	Advance Payments For Property Plant And Equipment Related Parties AdvancePaymentsForPropertyPlantAndEquipmentRelatedParties	8723000
CY2017Q4	caas	Advance Payments For Property Plant And Equipment Related Parties AdvancePaymentsForPropertyPlantAndEquipmentRelatedParties	5264000
CY2018Q4	us-gaap	Long Term Investments LongTermInvestments	32620000
CY2017Q4	us-gaap	Long Term Investments LongTermInvestments	27596000
CY2018Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	15336000
CY2017Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	13367000
CY2018Q4	caas	Accounts And Notes Payable Related Parties Current AccountsAndNotesPayableRelatedPartiesCurrent	4477000
CY2017Q4	caas	Accounts And Notes Payable Related Parties Current AccountsAndNotesPayableRelatedPartiesCurrent	7168000
CY2018Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	750000
CY2017Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	1128000
CY2018Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	7346000
CY2017Q4	us-gaap	Other Employee Related Liabilities Current OtherEmployeeRelatedLiabilitiesCurrent	8577000
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	47032000
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	40127000
CY2018Q4	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrent	3282000
CY2017Q4	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrent	4051000
CY2018Q4	us-gaap	Due To Officers Or Stockholders Current DueToOfficersOrStockholdersCurrent	317000
CY2017Q4	us-gaap	Due To Officers Or Stockholders Current DueToOfficersOrStockholdersCurrent	343000
CY2018Q4	caas	Advances Payable Current AdvancesPayableCurrent	364000
CY2017Q4	caas	Advances Payable Current AdvancesPayableCurrent	383000
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	341300000
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	373463000
CY2018Q4	caas	Long Term Government Loan LongTermGovernmentLoan	291000
CY2017Q4	caas	Long Term Government Loan LongTermGovernmentLoan	306000
CY2018Q4	caas	Advance Payable Non Current AdvancePayableNonCurrent	1654000
CY2017Q4	caas	Advance Payable Non Current AdvancePayableNonCurrent	359000
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	4198000
CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	4393000
CY2018Q4	us-gaap	Liabilities Liabilities	385672000
CY2017Q4	us-gaap	Liabilities Liabilities	411240000
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	3000
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	3000
CY2018Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	11104000
CY2017Q4	us-gaap	Retained Earnings Appropriated RetainedEarningsAppropriated	10707000
CY2018Q4	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	211439000
CY2017Q4	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	209459000
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2953000
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2907000
CY2018Q4	us-gaap	Minority Interest MinorityInterest	18950000
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	690499000
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	717369000
CY2018	us-gaap	Revenues Revenues	496158000
CY2017	us-gaap	Revenues Revenues	499063000
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	430745000
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	414429000
CY2018	us-gaap	Gross Profit GrossProfit	65413000
CY2017	us-gaap	Gross Profit GrossProfit	84634000
CY2018	caas	Gain Loss On Other Sales GainLossOnOtherSales	3940000
CY2017	caas	Gain Loss On Other Sales GainLossOnOtherSales	7635000
CY2018	us-gaap	Selling Expense SellingExpense	18949000
CY2017	us-gaap	Selling Expense SellingExpense	19912000
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	19761000
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	19543000
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	33551000
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	33544000
CY2018	us-gaap	Operating Expenses OperatingExpenses	72261000
CY2017	us-gaap	Operating Expenses OperatingExpenses	72999000
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-2908000
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	19270000
CY2018	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1173000
CY2017	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	678000
CY2018	us-gaap	Interest Expense InterestExpense	2928000
CY2017	us-gaap	Interest Expense InterestExpense	1753000
CY2018	us-gaap	Profit Loss ProfitLoss	79000
CY2017	us-gaap	Profit Loss ProfitLoss	-18639000
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-16548000
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	19384000
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-16469000
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	745000
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2921000
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1352000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-13548000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-607000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	285877000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	299448000
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	304827000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	306129000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	23000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	100000
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	16816000
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	15358000
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2502000
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4143000
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	6239000
CY2017	us-gaap	Inventory Write Down InventoryWriteDown	5109000
CY2018	caas	Increase Decrease In Allowance For Doubtful Accounts IncreaseDecreaseInAllowanceForDoubtfulAccounts	-887000
CY2017	caas	Increase Decrease In Allowance For Doubtful Accounts IncreaseDecreaseInAllowanceForDoubtfulAccounts	-887000
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	1115000
CY2017	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	2617000
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	445000
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	2184000
CY2018	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-27526000
CY2017	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-30908000
CY2018	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	3790000
CY2017	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	529000
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	17853000
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	12156000
CY2018	caas	Increase Decrease In Accounts And Notes Payable IncreaseDecreaseInAccountsAndNotesPayable	-22491000
CY2017	caas	Increase Decrease In Accounts And Notes Payable IncreaseDecreaseInAccountsAndNotesPayable	2533000
CY2018	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	-346000
CY2017	us-gaap	Increase Decrease In Customer Deposits IncreaseDecreaseInCustomerDeposits	411000
CY2018	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-964000
CY2017	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	1182000
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	8893000
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	560000
CY2018	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-646000
CY2017	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-331000
CY2018	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	2215000
CY2017	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	24164000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	12526000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	48899000
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	22923000
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	32145000
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	34175000
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	35780000
CY2018	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-337000
CY2017	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-198000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	25764000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	27096000
CY2018	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	189000
CY2017	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	201000
CY2018	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	0
CY2017	us-gaap	Payments To Fund Longterm Loans To Related Parties PaymentsToFundLongtermLoansToRelatedParties	29044000
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	5957000
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	7629000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2453000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-47315000
CY2018	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	78917000
CY2017	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	72237000
CY2018	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	92215000
CY2017	us-gaap	Repayments Of Bank Debt RepaymentsOfBankDebt	43154000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10120000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	28460000
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-5223000
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	4158000
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	19876000
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	34202000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	3803000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	654000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	3717000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	4643000
CY2018	caas	Property Plant Equipment Value Recorded For Which Advance Paid PropertyPlantEquipmentValueRecordedForWhichAdvancePaid	13347000
CY2017	caas	Property Plant Equipment Value Recorded For Which Advance Paid PropertyPlantEquipmentValueRecordedForWhichAdvancePaid	19879000
CY2018	caas	Account Payable For Acquiring Property Plant And Equipment AccountPayableForAcquiringPropertyPlantAndEquipment	1046000
CY2017	caas	Account Payable For Acquiring Property Plant And Equipment AccountPayableForAcquiringPropertyPlantAndEquipment	1180000
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	700000
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	700000
CY2017Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	29033000
CY2016Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	26225000
CY2018	us-gaap	Standard Product Warranty Accrual Additions From Business Acquisition StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition	24102000
CY2017	us-gaap	Standard Product Warranty Accrual Additions From Business Acquisition StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition	23354000
CY2018	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	20599000
CY2017	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	22034000
CY2018	us-gaap	Standard Product Warranty Accrual Foreign Currency Translation Gain Loss StandardProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-1451000
CY2017	us-gaap	Standard Product Warranty Accrual Foreign Currency Translation Gain Loss StandardProductWarrantyAccrualForeignCurrencyTranslationGainLoss	1488000
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	31085000
CY2017Q4	caas	Floating Interest Rate Charges FloatingInterestRateCharges	20600000
CY2017Q4	us-gaap	Time Deposits TimeDeposits	13000000
CY2017Q4	us-gaap	Time Deposits TimeDeposits	1900000
CY2018Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	149100000
CY2017Q4	us-gaap	Accounts Receivable Gross AccountsReceivableGross	166889000
CY2018Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	90412000
CY2017Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	109183000
CY2018Q4	caas	Accounts And Notes Receivable Gross AccountsAndNotesReceivableGross	239512000
CY2017Q4	caas	Accounts And Notes Receivable Gross AccountsAndNotesReceivableGross	276072000
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1993000
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1083000
CY2018Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	237519000
CY2017Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	274989000
CY2018Q4	caas	Accounts And Notes Receivable Net Related Parties AccountsAndNotesReceivableNetRelatedParties	18825000
CY2017Q4	caas	Accounts And Notes Receivable Net Related Parties AccountsAndNotesReceivableNetRelatedParties	19086000
CY2018Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	256344000
CY2017Q4	us-gaap	Accounts And Notes Receivable Net AccountsAndNotesReceivableNet	294075000
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1083000
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1081000
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	989000
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	31000
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	27000
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	90000
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	-52000
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	61000
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1993000
CY2018Q4	caas	Advance Payments And Others Unrelated Parties AdvancePaymentsAndOthersUnrelatedParties	17177000
CY2017Q4	caas	Advance Payments And Others Unrelated Parties AdvancePaymentsAndOthersUnrelatedParties	13801000
CY2018Q4	caas	Allowance For Doubtful Accounts Payable AllowanceForDoubtfulAccountsPayable	907000
CY2017Q4	caas	Allowance For Doubtful Accounts Payable AllowanceForDoubtfulAccountsPayable	1011000
CY2018Q4	caas	Advance Payments And Others To Unrelated Parties AdvancePaymentsAndOthersToUnrelatedParties	16270000
CY2017Q4	caas	Advance Payments And Others To Unrelated Parties AdvancePaymentsAndOthersToUnrelatedParties	12790000
CY2018Q4	caas	Advance Payments And Others Related Parties AdvancePaymentsAndOthersRelatedParties	1281000
CY2017Q4	caas	Advance Payments And Others Related Parties AdvancePaymentsAndOthersRelatedParties	20841000
CY2018Q4	caas	Advance Payments And Others AdvancePaymentsAndOthers	17551000
CY2017Q4	caas	Advance Payments And Others AdvancePaymentsAndOthers	33631000
CY2018	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	6200000
CY2017	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	5100000
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	27190000
CY2017Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	20033000
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	11932000
CY2017Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	17951000
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	48899000
CY2017Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	41233000
CY2018Q4	us-gaap	Inventory Net InventoryNet	88021000
CY2017Q4	us-gaap	Inventory Net InventoryNet	79217000
CY2017Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Unrelated Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesUnrelatedParties	108000
CY2016Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Unrelated Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesUnrelatedParties	63000
CY2018	caas	Amounts Provided For During Year Unrelated Parties AmountsProvidedForDuringYearUnrelatedParties	0
CY2017	caas	Amounts Provided For During Year Unrelated Parties AmountsProvidedForDuringYearUnrelatedParties	41000
CY2018	caas	Amounts Reversed Of Collection During Year Unrelated Parties AmountsReversedOfCollectionDuringYearUnrelatedParties	4000
CY2017	caas	Amounts Reversed Of Collection During Year Unrelated Parties AmountsReversedOfCollectionDuringYearUnrelatedParties	0
CY2018	caas	Foreign Currency Translation Unrelated Parties ForeignCurrencyTranslationUnrelatedParties	5000
CY2017	caas	Foreign Currency Translation Unrelated Parties ForeignCurrencyTranslationUnrelatedParties	-4000
CY2018Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Unrelated Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesUnrelatedParties	99000
CY2017Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Related Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesRelatedParties	585000
CY2016Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Related Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesRelatedParties	559000
CY2018	caas	Amounts Provided For During Year Related Parties AmountsProvidedForDuringYearRelatedParties	0
CY2017	caas	Amounts Provided For During Year Related Parties AmountsProvidedForDuringYearRelatedParties	18000
CY2018	caas	Amounts Reversed Of Collection During Year Related Parties AmountsReversedOfCollectionDuringYearRelatedParties	11000
CY2017	caas	Amounts Reversed Of Collection During Year Related Parties AmountsReversedOfCollectionDuringYearRelatedParties	26000
CY2018	caas	Foreign Currency Translation Related Parties ForeignCurrencyTranslationRelatedParties	27000
CY2017	caas	Foreign Currency Translation Related Parties ForeignCurrencyTranslationRelatedParties	-34000
CY2018Q4	caas	Allowance For Doubtful Accounts Premiums And Other Receivables Related Parties AllowanceForDoubtfulAccountsPremiumsAndOtherReceivablesRelatedParties	547000
CY2018	caas	Income From Investment Of Affiliates IncomeFromInvestmentOfAffiliates	1100000
CY2017	caas	Income From Investment Of Affiliates IncomeFromInvestmentOfAffiliates	2500000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	276319000
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	262152000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	146466000
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	136119000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	129853000
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	126033000
CY2018	us-gaap	Depreciation Depreciation	16500000
CY2017	us-gaap	Depreciation Depreciation	14400000
CY2017Q4	us-gaap	Pledged Assets Separately Reported Loans Pledged For Other Debt Obligations At Fair Value PledgedAssetsSeparatelyReportedLoansPledgedForOtherDebtObligationsAtFairValue	68400000
CY2018Q4	us-gaap	Pledged Assets Separately Reported Loans Pledged For Other Debt Obligations At Fair Value PledgedAssetsSeparatelyReportedLoansPledgedForOtherDebtObligationsAtFairValue	55900000
CY2017	caas	Subsidy On Property Plant And Equipment Cost SubsidyOnPropertyPlantAndEquipmentCost	500000
CY2018Q4	us-gaap	Finite Lived Patents Gross FiniteLivedPatentsGross	2063000
CY2017Q4	us-gaap	Finite Lived Patents Gross FiniteLivedPatentsGross	2108000
CY2018Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1504000
CY2017Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	1441000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	3567000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	3549000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2962000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	2888000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	3023000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	3580000
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	5132000
CY2017Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	2178000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	5695000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	5264000
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4884000
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4607000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	131000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	156000
CY2018Q4	caas	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Bonus DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBonus	363000
CY2017Q4	caas	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Bonus DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsBonus	287000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1858000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1535000
CY2018Q4	caas	Deferred Tax Assets Temporary Difference On Revenue Recognition DeferredTaxAssetsTemporaryDifferenceOnRevenueRecognition	1756000
CY2017Q4	caas	Deferred Tax Assets Temporary Difference On Revenue Recognition DeferredTaxAssetsTemporaryDifferenceOnRevenueRecognition	1619000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	1528000
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Other DeferredTaxAssetsTaxDeferredExpenseOther	1353000
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	24370000
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	20579000
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7522000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6058000
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	16848000
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	14521000
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6058000
CY2016Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8912000
CY2018	caas	Provision For Valuation Allowance ProvisionForValuationAllowance	2288000
CY2017	caas	Provision For Valuation Allowance ProvisionForValuationAllowance	860000
CY2018	caas	Valuation Allowance Recoveries ValuationAllowanceRecoveries	713000
CY2017	caas	Valuation Allowance Recoveries ValuationAllowanceRecoveries	1309000
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	0
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2490000
CY2018	caas	Valuation Allowance Foreign Currency Translation ValuationAllowanceForeignCurrencyTranslation	-111000
CY2017	caas	Valuation Allowance Foreign Currency Translation ValuationAllowanceForeignCurrencyTranslation	85000
CY2018Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	60952000
CY2017Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	72711000
CY2018Q4	caas	Long Term Government Loan Noncurrent LongTermGovernmentLoanNoncurrent	291000
CY2017Q4	caas	Long Term Government Loan Noncurrent LongTermGovernmentLoanNoncurrent	306000
CY2018Q4	caas	Total Bank And Government Loan TotalBankAndGovernmentLoan	61243000
CY2017Q4	caas	Total Bank And Government Loan TotalBankAndGovernmentLoan	73017000
CY2018Q4	caas	Accounts Payable Unrelated Parties AccountsPayableUnrelatedParties	124610000
CY2017Q4	caas	Accounts Payable Unrelated Parties AccountsPayableUnrelatedParties	149200000
CY2018Q4	caas	Notes Payable Unrelated Parties NotesPayableUnrelatedParties	81033000
CY2017Q4	caas	Notes Payable Unrelated Parties NotesPayableUnrelatedParties	83848000
CY2018Q4	caas	Accounts And Notes Payable Current AccountsAndNotesPayableCurrent	205643000
CY2017Q4	caas	Accounts And Notes Payable Current AccountsAndNotesPayableCurrent	233048000
CY2018Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	4477000
CY2017Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	7168000
CY2018Q4	caas	Accounts And Notes Payable Total AccountsAndNotesPayableTotal	210120000
CY2017Q4	caas	Accounts And Notes Payable Total AccountsAndNotesPayableTotal	240216000
CY2018Q4	caas	Accrued Expenses Current AccruedExpensesCurrent	8341000
CY2017Q4	caas	Accrued Expenses Current AccruedExpensesCurrent	7944000
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	31085000
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	29033000
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	3783000
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	1803000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	135000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	5.66
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	100000
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	100000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	1.01
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.46
CY2018	caas	Statutory Accounting Practices Statutory Surplus Required Percentage StatutoryAccountingPracticesStatutorySurplusRequiredPercentage	0.1
CY2018	caas	Percentage Of Statutory Surplus Reserve PercentageOfStatutorySurplusReserve	0.5
CY2018	caas	Statutory Accounting Practices Statutory Capital And Surplus Reserve StatutoryAccountingPracticesStatutoryCapitalAndSurplusReserve	400000
CY2018Q4	caas	Accrued Interest Current AccruedInterestCurrent	423000
CY2017Q4	caas	Accrued Interest Current AccruedInterestCurrent	1347000
CY2018Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	3790000
CY2017Q4	us-gaap	Sales And Excise Tax Payable Current SalesAndExciseTaxPayableCurrent	1813000
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	3778000
CY2017Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	3450000
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3569000
CY2017Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	664000
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	11137000
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5927000
CY2018Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	29503000
CY2017Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	32719000
CY2018Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	40640000
CY2017Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	38646000
CY2018Q4	caas	Advances Payable AdvancesPayable	2100000
CY2017Q4	caas	Advances Payable AdvancesPayable	700000
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	64406000
CY2016Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	64764000
CY2018	caas	Acquisition Of Noncontrolling Interests AcquisitionOfNoncontrollingInterests	0
CY2017	caas	Acquisition Of Noncontrolling Interests AcquisitionOfNoncontrollingInterests	458000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	23000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	100000
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	64429000
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	112500
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.31
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	22500
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.04
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	135000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.93
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	22500
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	2.37
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	22500
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	10.00
CY2017	caas	Statutory Accounting Practices Statutory Capital And Surplus Reserve StatutoryAccountingPracticesStatutoryCapitalAndSurplusReserve	200000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	17780000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-892000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-67000
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-15925000
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	18739000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	1855000
CY2018Q4	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	5000000
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	17400
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	50000
CY2017Q4	us-gaap	Minority Interest MinorityInterest	6681000
CY2016Q4	us-gaap	Minority Interest MinorityInterest	5412000
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2298000
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	707000
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	538000
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	608000
CY2018	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	0
CY2017	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	458000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-67000
CY2018Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	179130000
CY2017Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	170739000
CY2018	caas	Increase In Income Tax Expense Benefit Percentage IncreaseInIncomeTaxExpenseBenefitPercentage	0.25
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.15
CY2008Q1	caas	Withholding Tax Percentage Applicable To Foreign Investors As Non Resident Enterprises WithholdingTaxPercentageApplicableToForeignInvestorsAsNonResidentEnterprises	0.1
CY2018	caas	Percentage Owned In Holding Company To Avail Withholding Tax Of Five Percent PercentageOwnedInHoldingCompanyToAvailWithholdingTaxOfFivePercent	0.25
CY2018	us-gaap	Undistributed Earnings UndistributedEarnings	296430000
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	-623000
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToNoncontrollingInterest	645000
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	2275000
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	3438000
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	457000
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-778000
CY2018	caas	Handling Charge HandlingCharge	570000
CY2017	caas	Handling Charge HandlingCharge	480000
CY2018	caas	Finance Income Expenses Net FinanceIncomeExpensesNet	2162000
CY2017	caas	Finance Income Expenses Net FinanceIncomeExpensesNet	2180000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	2377000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-19346000
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31643813
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31644004
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1781
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2893
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31645594
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31646897
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.08
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.61
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.08
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.61
CY2018	caas	Minimum Percentage Of Profit Allocated To Foreign Investment MinimumPercentageOfProfitAllocatedToForeignInvestment	0.1
CY2018	caas	Registered Capital Percentage RegisteredCapitalPercentage	0.5
CY2018Q4	us-gaap	Contractual Obligation Due In Next Twelve Months ContractualObligationDueInNextTwelveMonths	39717000
CY2018Q4	us-gaap	Contractual Obligation Due In Second Year ContractualObligationDueInSecondYear	3274000
CY2018Q4	us-gaap	Contractual Obligation Due In Third Year ContractualObligationDueInThirdYear	0
CY2018Q4	caas	Contractual Obligation Due After Third Year ContractualObligationDueAfterThirdYear	0
CY2018Q4	us-gaap	Contractual Obligation ContractualObligation	42991000
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	29037000
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	33915000
CY2018	caas	Sales Revenues Net SalesRevenuesNet	496158000
CY2017	caas	Sales Revenues Net SalesRevenuesNet	499063000
CY2017	us-gaap	Undistributed Earnings UndistributedEarnings	294200000
CY2018	caas	Tax Provision On Retained Earning Not Reinvested TaxProvisionOnRetainedEarningNotReinvested	29600000
CY2017	caas	Tax Provision On Retained Earning Not Reinvested TaxProvisionOnRetainedEarningNotReinvested	29400000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-2501000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	20375000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-525000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7131000
CY2018	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	3731000
CY2017	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	5328000
CY2018	caas	Income Tax Reconciliation Change In Foreign Tax Rate IncomeTaxReconciliationChangeInForeignTaxRate	749000
CY2017	caas	Income Tax Reconciliation Change In Foreign Tax Rate IncomeTaxReconciliationChangeInForeignTaxRate	1830000
CY2018	caas	Effective Income Tax Rate Reconciliation Transition Tax Amount EffectiveIncomeTaxRateReconciliationTransitionTaxAmount	0
CY2017	caas	Effective Income Tax Rate Reconciliation Transition Tax Amount EffectiveIncomeTaxRateReconciliationTransitionTaxAmount	35564000
CY2018	caas	Effective Income Tax Rate Reconciliationwithholding Tax Resulting From Distribution Of Dividends Amount EffectiveIncomeTaxRateReconciliationwithholdingTaxResultingFromDistributionOfDividendsAmount	0
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2490000
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1965000
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	2507000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1465000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41633000
CY2018	us-gaap	Income Tax Reconciliation Tax Holidays IncomeTaxReconciliationTaxHolidays	749000
CY2017	us-gaap	Income Tax Reconciliation Tax Holidays IncomeTaxReconciliationTaxHolidays	1830000
CY2018	us-gaap	Income Loss From Extraordinary Items Net Of Tax Per Basic Share IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare	0.02
CY2017	us-gaap	Income Loss From Extraordinary Items Net Of Tax Per Basic Share IncomeLossFromExtraordinaryItemsNetOfTaxPerBasicShare	0.06
CY2018	us-gaap	Income Loss From Extraordinary Items Net Of Tax Per Diluted Share IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare	0.02
CY2017	us-gaap	Income Loss From Extraordinary Items Net Of Tax Per Diluted Share IncomeLossFromExtraordinaryItemsNetOfTaxPerDilutedShare	0.06
CY2018Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	8726000
CY2017Q4	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	0
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	80000000
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	32338302
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	32338302
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	80000000
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	711698
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	694298
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1115000
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2619000
CY2018	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	37606000
CY2017	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	37583000
CY2018	us-gaap	Related Party Costs RelatedPartyCosts	25558000
CY2017	us-gaap	Related Party Costs RelatedPartyCosts	28994000
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1022000
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2231000
CY2018	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	20430000
CY2017	us-gaap	Proceeds From Collection Of Longterm Loans To Related Parties ProceedsFromCollectionOfLongtermLoansToRelatedParties	10591000
CY2018	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	11758000
CY2017	us-gaap	Proceeds From Long Term Capital Lease Obligations ProceedsFromLongTermCapitalLeaseObligations	0
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	96093000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	61891000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	115969000
CY2018	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	3218000
CY2017	us-gaap	Repayments Of Long Term Capital Lease Obligations RepaymentsOfLongTermCapitalLeaseObligations	0
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	19900000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	0
CY2018Q4	us-gaap	Time Deposits TimeDeposits	0
CY2018Q4	us-gaap	Time Deposits TimeDeposits	0
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	126300000
CY2018Q4	us-gaap	Notes Receivable Net NotesReceivableNet	18400000
CY2018Q4	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	3400000
CY2017Q4	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	0
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	258500000
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	37700000
CY2018Q4	caas	Onetime Transition Tax Payablenoncurren OnetimeTransitionTaxPayablenoncurren	35600000
CY2018Q4	caas	Onetime Transition Tax Payablecurrent OnetimeTransitionTaxPayablecurrent	2800000
CY2017Q4	caas	Onetime Transition Tax Payablecurrent OnetimeTransitionTaxPayablecurrent	2800000
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	130000000
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	524000
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	623000
CY2018Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13300000
CY2018Q1	us-gaap	Cash Cash	14600000
CY2018	caas	Proceeds To Acquire Property Plant And Equipment From Government As Subsidy ProceedsToAcquirePropertyPlantAndEquipmentFromGovernmentAsSubsidy	1322000
CY2017	caas	Proceeds To Acquire Property Plant And Equipment From Government As Subsidy ProceedsToAcquirePropertyPlantAndEquipmentFromGovernmentAsSubsidy	0
CY2018	caas	Payments To Broker Agents For Repurchase Of Common Stock PaymentsToBrokerAgentsForRepurchaseOfCommonStock	300000
CY2017	caas	Payments To Broker Agents For Repurchase Of Common Stock PaymentsToBrokerAgentsForRepurchaseOfCommonStock	0
CY2018	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	26000
CY2017	us-gaap	Repayments Of Related Party Debt RepaymentsOfRelatedPartyDebt	0
CY2018Q1	us-gaap	Sale Leaseback Transaction Quarterly Rental Payments SaleLeasebackTransactionQuarterlyRentalPayments	1000000
CY2017Q2	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.1584
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P5Y
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P5Y
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P5Y
CY2017	caas	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Remaining Contractual Term2 ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageRemainingContractualTerm2	P5Y
CY2018	caas	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Remaining Contractual Term2 ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageRemainingContractualTerm2	P5Y
CY2018	caas	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expired In Period Weighted Average Remaining Contractual Term2 ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriodWeightedAverageRemainingContractualTerm2	P5Y
CY2018	caas	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercisable ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisable	20000
CY2017	caas	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercisable ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisable	100000
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20000
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	100000
CY2017	caas	Effective Income Tax Rate Reconciliationwithholding Tax Resulting From Distribution Of Dividends Amount EffectiveIncomeTaxRateReconciliationwithholdingTaxResultingFromDistributionOfDividendsAmount	3952000
CY2018	caas	Description Of Withholding Tax Rate On Dividend DescriptionOfWithholdingTaxRateOnDividend	According to the Mainland China and Hong Kong Taxation Arrangement, dividends paid by a foreign-invested enterprise in China to its direct holding company in Hong Kong would be subject to withholding tax at a rate of 10% if Genesis could not obtain the Hong Kong tax resident certificate from the Hong Kong Inland Revenue Department. If Genesis obtains the Hong Kong tax resident certificate, owns directly at least 25% of the shares of the foreign invested enterprise and is qualified as the beneficial owner, it could benefit from a lower rate of 5%.
CY2018Q4	caas	Treasury Stock Shares Repurchased TreasuryStockSharesRepurchased	711698
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Use of Estimates</div></div><div style="white-space: pre-line; font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"> - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenues and expenses during the reporting periods. The Company is of the opinion that the significant estimates related to valuation of long term assets and investment, the realizable value of accounts receivable and inventories, the accrual of warranty obligations and the recoverability of deferred tax assets. Actual results could differ from those estimates.</div><table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table>
CY2018	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	15728000
CY2017	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	0
CY2018Q4	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	4.00
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.053
CY2017Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.047
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	300000
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	300000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	200000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	100000
CY2014Q2	caas	Loan Receivable Term LoanReceivableTerm	P5Y
CY2018	us-gaap	Guarantees Indemnifications And Warranties Policies GuaranteesIndemnificationsAndWarrantiesPolicies	<div style="font-family: "times new roman", serif; font-size: 10pt; margin-bottom: 0px; margin-top: 0px; text-align: justify; background: none;"><div style="font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Product Warranties</div></div><div style="white-space: pre-line; font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"> - The Company provides for the estimated cost of product warranties when the products are sold. Such estimates of product warranties were based on, among other things, historical experience, product changes, material expenses, service and transportation expenses arising from the manufactured product. Estimates will be adjusted on the basis of actual claims and circumstances.</div></div><div style="font-family: "times new roman", serif; font-size: 10pt; margin-bottom: 0px; margin-top: 0px; text-align: justify; text-indent: 0.5in; background: none;"><div style="white-space: pre-line; font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div><div style="font-family: "times new roman", serif; font-size: 10pt; margin-bottom: 0px; margin-top: 0px; background: none;"><div style="font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">For the years ended December 31, 2018 and 2017, the warranties activities were as follows (figures are in thousands of USD):</div></div><div style="font-family: "times new roman", serif; font-size: 10pt; margin-bottom: 0px; margin-top: 0px; text-indent: 0.5in; background: none;"><div style="font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div><div><table style="border-width: initial; border-top-style: none; border-bottom-style: none; border-color: initial; border-image: initial; border-collapse: collapse; margin-bottom: 0.001pt; width: 100%;;text-align:left;"><tr><td style="border-top: none; border-bottom: none; padding: 0px 0px 1pt; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: center; background: none; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td style="border-top: none; padding: 0in 0in 1pt; vertical-align: bottom;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td colspan="6" style="border-bottom: 1pt solid rgb(0, 0, 0); border-top: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 11%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: center; background: none; line-height: normal; white-space: nowrap;"><div style="font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">Year Ended December 31,</div></div></div></td><td style="border-top: none; padding: 0in 0in 0.5pt; vertical-align: bottom; white-space: nowrap;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td></tr><tr><td style="border-top: none; border-bottom: none; padding: 0px 0px 1pt; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: center; background: none; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td style="padding: 0in 0in 1pt; vertical-align: bottom;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td colspan="2" style="border-bottom: 1pt solid rgb(0, 0, 0); border-top: 0px none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 11%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: center; background: none; line-height: normal; white-space: nowrap;"><div style="font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">2018</div></div></div></td><td style="border-top: 0px none; padding: 0in 0in 0.5pt; vertical-align: bottom; white-space: nowrap;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td style="border-top: 0px none; padding: 0in 0in 1pt; vertical-align: bottom; white-space: nowrap;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td><td colspan="2" style="border-bottom: 1pt solid rgb(0, 0, 0); border-top: 0px none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 11%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: center; background: none; line-height: normal; white-space: nowrap;"><div style="font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">2017</div></div></div></td><td style="padding: 0in 0in 0.5pt; vertical-align: bottom; white-space: nowrap;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; margin-bottom: 0px; margin-top: 0px;"><div style="background: none;;font-weight:bold;display:inline;width:100%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></div></td></tr><tr><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0px; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">Balance at the beginning of year</div></div></td><td style="background: rgb(204, 238, 255); border-top: none; padding: 0in; vertical-align: bottom; width: 1%;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(204, 238, 255); width: 1%; border-bottom: none; border-top: 0px none; text-align: left; vertical-align: bottom; padding: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">$</div></div></td><td style="background: rgb(204, 238, 255); border-top: 0px none; border-bottom: none; padding: 0in; vertical-align: bottom; width: 10%; white-space: nowrap; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">29,033</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in; vertical-align: bottom; width: 1%; white-space: nowrap; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(204, 238, 255); width: 1%; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(204, 238, 255); border-top: 0px none; border-bottom: none; padding: 0in; vertical-align: bottom; width: 1%; white-space: nowrap; text-align: left;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">$</div></div></td><td style="background: rgb(204, 238, 255); border-top: 0px none; border-bottom: none; padding: 0in; vertical-align: bottom; width: 10%; white-space: nowrap; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">26,225</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in; vertical-align: bottom; width: 1%; white-space: nowrap; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td></tr><tr><td style="background: rgb(255, 255, 255); border-top: none; border-bottom: none; padding: 0px; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">Additions during the year</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in; vertical-align: bottom; width: 1%;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(255, 255, 255); width: 1%; border-bottom: none; border-top: none; text-align: left; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">24,102</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(255, 255, 255); width: 1%; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">23,354</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td></tr><tr><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0px; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">Settlement within the year</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in; vertical-align: bottom; width: 1%;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(204, 238, 255); width: 1%; border-bottom: none; border-top: none; text-align: left; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">(20,599</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">)</div></div></td><td style="background-color: rgb(204, 238, 255); width: 1%; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">(22,034</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">)</div></div></td></tr><tr><td style="background: rgb(255, 255, 255); border-top: none; border-bottom: none; padding: 0px 0px 1pt; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">Foreign currency translation</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in 0in 1pt; vertical-align: bottom; width: 1%;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(255, 255, 255); width: 1%; border-bottom: 1pt solid rgb(0, 0, 0); border-top: none; text-align: left; vertical-align: bottom; padding: 0in;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-bottom: 1pt solid rgb(0, 0, 0); border-top: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">(1,451</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in 0in 0.5pt; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">)</div></div></td><td style="background-color: rgb(255, 255, 255); width: 1%; vertical-align: bottom; padding: 0in 0in 1pt;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-bottom: 1pt solid rgb(0, 0, 0); border-top: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(255, 255, 255); border-bottom: 1pt solid rgb(0, 0, 0); border-top: none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">1,488</div></div></td><td style="background: rgb(255, 255, 255); padding: 0in 0in 0.5pt; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td></tr><tr><td style="background: rgb(204, 238, 255); border-top: none; border-bottom: none; padding: 0px 0px 2.5pt; vertical-align: bottom; width: 74%;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;">Balance at end of year</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in 0in 2.5pt; vertical-align: bottom; width: 1%;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background-color: rgb(204, 238, 255); width: 1%; border-bottom: 2.5pt double rgb(0, 0, 0); border-top: 0px none; text-align: left; vertical-align: bottom; padding: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">$</div></div></td><td style="background: rgb(204, 238, 255); border-bottom: 2.5pt double rgb(0, 0, 0); border-top: 0px none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">31,085</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in 0in 1.5pt; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="padding: 0in 0in 2.5pt; background-color: rgb(204, 238, 255); width: 1%; vertical-align: bottom;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td><td style="background: rgb(204, 238, 255); border-bottom: 2.5pt double rgb(0, 0, 0); border-top: 0px none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: left; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-left: 0in; text-indent: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">$</div></div></td><td style="background: rgb(204, 238, 255); border-bottom: 2.5pt double rgb(0, 0, 0); border-top: 0px none; padding: 0in; vertical-align: bottom; white-space: nowrap; width: 10%; text-align: right;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; text-align: right; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; line-height: normal; white-space: nowrap; margin-right: 0in;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background-image: none; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px; white-space: nowrap;;display:inline;">29,033</div></div></td><td style="background: rgb(204, 238, 255); padding: 0in 0in 1.5pt; vertical-align: bottom; white-space: nowrap; width: 1%; text-align: left;"><div style="font-size: 10pt; font-family: "times new roman", times, serif; margin-left: 0in; text-indent: 0in; text-align: left; white-space: nowrap; line-height: normal; background: none; margin-bottom: 0px; margin-top: 0px;"><div style="font-family: "times new roman", times, serif; font-size: 10pt; background: none; text-decoration: none; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div></td></tr></table><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div><div style="clear: both; max-height: 0px;"></div></div><table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table>
CY2017Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	10000000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	100000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	100000
CY2018	caas	Subsidy On Property Plant And Equipment Cost SubsidyOnPropertyPlantAndEquipmentCost	0
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	600000
CY2017Q2	caas	Non Revolving Credit Facility NonRevolvingCreditFacility	10000000
CY2017Q2	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.027
CY2017Q2	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	10000000
CY2016Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	170000000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	100000
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2000000
CY2017Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	300000
CY2017Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0475
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	51100000
CY2016Q3	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	24800000
CY2017Q3	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	20000000
CY2017Q3	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	3100000
CY2017Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0150
CY2017Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	20000000
CY2017Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	2900000
CY2018Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	50000000
CY2018Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	7300000
CY2018Q3	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	51000000
CY2018Q3	us-gaap	Debt Instrument Collateral Amount DebtInstrumentCollateralAmount	7400000
CY2018Q3	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0348
CY2018Q3	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	11500000
CY2018Q3	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	1700000
CY2018Q3	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	3800000
CY2017Q4	us-gaap	Line Of Credit Facility Interest Rate At Period End LineOfCreditFacilityInterestRateAtPeriodEnd	0.0393
CY2017Q3	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2018-08-16
CY2017Q2	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2018-04-25
CY2012Q2	us-gaap	Line Of Credit Facility Expiration Date1 LineOfCreditFacilityExpirationDate1	2018-05-12
CY2018Q3	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.666
CY2017Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;;font-style:italic;display:inline;">Concentration of Credit Risk</div></div><div style="white-space: pre-line; font-family: "times new roman", serif; font-size: 10pt; background: none; color: rgb(0, 0, 0); letter-spacing: 0px; top: 0px;;display:inline;"> - Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of trade accounts receivable. The Company performs ongoing credit evaluations with respect to the financial condition of its debtors, but does not require collateral. In order to determine the value of the Company’s accounts receivable, the Company records a provision for doubtful accounts to cover probable credit losses. Management reviews and adjusts this allowance periodically based on historical experience and its evaluation of the collectability of outstanding accounts receivable.</div><table border="0" style="width:100%; table-layout:fixed;" cellspacing="0" cellpadding="0"><tr><td></td></tr></table>
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.5
CY2018	us-gaap	Equity Method Investment Description Of Principal Activities EquityMethodInvestmentDescriptionOfPrincipalActivities	The Company’s long-term investments include investments in corporations and investments in limited partnerships. Investments in corporations which the Company has the ability to exert significant influence are accounted for using the equity method. Investments in limited partnerships which the Company has more than virtually no influence are accounted for using the equity method.
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Entity Registrant Name EntityRegistrantName	CHINA AUTOMOTIVE SYSTEMS INC
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001157762
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	51400000
CY2018	dei	Trading Symbol TradingSymbol	CAAS
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	31497723
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	true
CY2018Q4	us-gaap	Assets Assets	690499000
CY2017Q4	us-gaap	Assets Assets	717369000
CY2018Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	4198000
CY2017Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	4393000
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1512000
CY2017Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1154000
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5710000
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5547000

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caas-20181231.xml	Edgar Link	completed
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$CAAS
CHINA AUTOMOTIVE SYSTEMS INC Stock $caas

2018 Q4 Form 10-K Financial Statement

#000114420419016630 Filed on March 28, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CAAS CHINA AUTOMOTIVE SYSTEMS INC Stock $caas

2018 Q4 Form 10-K Financial Statement

#000114420419016630 Filed on March 28, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CAAS
CHINA AUTOMOTIVE SYSTEMS INC Stock $caas