$CSPI
CSP INC /MA/ Stock $cspi

$cspi Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-K Financial Statement

#000035603721000021 Filed on December 08, 2021

Income Statement

Concept	2021 Q3	2021	2020 Q3
Revenue	$10.01M	$49.21M	$15.59M
YoY Change	-35.79%	-20.37%	-29.65%
Cost Of Revenue	$5.837M	$33.06M	$11.17M
YoY Change	-47.74%	-25.92%	-34.56%
Gross Profit	$4.174M	$16.15M	$4.430M
YoY Change	-5.78%	-5.93%	-12.97%
Gross Profit Margin	41.69%	32.82%	28.42%
Selling, General & Admin	$3.824M	$14.62M	$4.190M
YoY Change	-8.74%	-7.4%	-9.31%
% of Gross Profit	91.61%	90.56%	94.58%
Research & Development	$696.0K	$2.900M	$720.0K
YoY Change	-3.33%	3.57%	4.35%
% of Gross Profit	16.67%	17.96%	16.25%
Depreciation & Amortization	$95.00K	$379.0K	$90.00K
YoY Change	5.56%	-14.45%	-18.18%
% of Gross Profit	2.28%	2.35%	2.03%
Operating Expenses	$4.520M	$17.51M	$4.900M
YoY Change	-7.76%	-5.81%	-7.72%
Operating Profit	-$346.0K	-$1.362M	-$470.0K
YoY Change	-26.38%	-4.35%	113.64%
Interest Expense	$305.0K	-$274.0K	-$220.0K
YoY Change	-238.64%	-168.5%	-178.57%
% of Operating Profit
Other Income/Expense, Net	-$30.00K	$2.040M	$0.00
YoY Change		463.54%
Pretax Income	-$71.00K	$678.0K	-$690.0K
YoY Change	-89.71%	-163.84%	-1250.0%
Income Tax	-$424.0K	$444.0K	-$730.0K
% Of Pretax Income		65.49%
Net Earnings	$818.0K	$699.0K	$40.00K
YoY Change	1945.0%	-148.34%	-112.12%
Net Earnings / Revenue	8.17%	1.42%	0.26%
Basic Earnings Per Share		$0.16
Diluted Earnings Per Share	$195.1K	$0.16	$9.828K
COMMON SHARES
Basic Shares Outstanding	4.377M	4.151M
Diluted Shares Outstanding		4.220M

Balance Sheet

Concept	2021 Q3	2021	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$20.01M	$20.01M	$19.26M
YoY Change	3.88%	3.88%	6.41%
Cash & Equivalents	$20.01M	$20.01M	$19.26M
Short-Term Investments
Other Short-Term Assets	$4.616M	$4.684M	$2.535M
YoY Change	82.09%	63.21%	-49.5%
Inventory	$3.989M	$3.989M	$5.285M
Prepaid Expenses
Receivables	$18.70M	$18.70M	$13.36M
Other Receivables	$1.656M	$1.656M	$810.0K
Total Short-Term Assets	$49.03M	$49.03M	$41.59M
YoY Change	17.9%	17.9%	-10.62%
LONG-TERM ASSETS
Property, Plant & Equipment	$764.0K	$2.137M	$1.047M
YoY Change	-27.03%	-31.94%	-17.56%
Goodwill
YoY Change
Intangibles	$19.00K		$28.00K
YoY Change	-32.14%
Long-Term Investments
YoY Change
Other Assets	$68.00K	$4.262M	$147.0K
YoY Change	-53.74%	-18.66%	-97.63%
Total Long-Term Assets	$13.94M	$13.94M	$12.06M
YoY Change	15.63%	15.59%	-6.11%
TOTAL ASSETS
Total Short-Term Assets	$49.03M	$49.03M	$41.59M
Total Long-Term Assets	$13.94M	$13.94M	$12.06M
Total Assets	$62.97M	$62.97M	$53.65M
YoY Change	17.39%	17.38%	-9.64%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$11.27M	$13.31M	$5.604M
YoY Change	101.12%	75.85%	-65.36%
Accrued Expenses	$569.0K	$569.0K	$680.0K
YoY Change	-16.32%	-16.32%
Deferred Revenue	$1.900M		$900.0K
YoY Change	111.11%
Short-Term Debt	$1.698M	$1.698M	$3.190M
YoY Change	-46.77%	-46.77%	14.75%
Long-Term Debt Due	$47.00K	$47.00K	$270.0K
YoY Change	-82.59%	-82.59%
Total Short-Term Liabilities	$17.83M	$17.83M	$12.98M
YoY Change	37.37%	37.34%	-35.21%
LONG-TERM LIABILITIES
Long-Term Debt	$881.0K	$881.0K	$2.540M
YoY Change	-65.31%	-65.31%	273.53%
Other Long-Term Liabilities	$4.783M	$10.22M	$202.0K
YoY Change	2267.82%	18.84%	-97.55%
Total Long-Term Liabilities	$4.783M	$11.10M	$202.0K
YoY Change	2267.82%	-0.35%	-97.73%
TOTAL LIABILITIES
Total Short-Term Liabilities	$17.83M	$17.83M	$12.98M
Total Long-Term Liabilities	$4.783M	$11.10M	$202.0K
Total Liabilities	$28.93M	$28.93M	$24.11M
YoY Change	19.98%	19.98%	-16.69%
SHAREHOLDERS EQUITY
Retained Earnings	$25.19M		$24.49M
YoY Change	2.85%
Common Stock	$18.30M		$17.04M
YoY Change	7.43%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$34.05M	$34.05M	$29.53M
YoY Change
Total Liabilities & Shareholders Equity	$62.97M	$62.97M	$53.65M
YoY Change	17.39%	17.38%	-9.64%

Cashflow Statement

Concept	2021 Q3	2021	2020 Q3
OPERATING ACTIVITIES
Net Income	$818.0K	$699.0K	$40.00K
YoY Change	1945.0%	-148.34%	-112.12%
Depreciation, Depletion And Amortization	$95.00K	$379.0K	$90.00K
YoY Change	5.56%	-14.45%	-18.18%
Cash From Operating Activities	$1.026M	$1.903M	-$990.0K
YoY Change	-203.64%	679.92%	-179.84%
INVESTING ACTIVITIES
Capital Expenditures	-$14.00K	$98.00K	$60.00K
YoY Change	-123.33%	-57.39%	-125.0%
Acquisitions
YoY Change
Other Investing Activities	$1.000K	-$68.00K	$20.00K
YoY Change	-95.0%	-43.33%
Cash From Investing Activities	-$13.00K	-$166.0K	$80.00K
YoY Change	-116.25%	-51.88%	-132.0%
FINANCING ACTIVITIES
Cash Dividend Paid		$0.00
YoY Change		-100.0%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$332.0K
YoY Change		-70.8%
Cash From Financing Activities	-632.0K	-954.0K	20.00K
YoY Change	-3260.0%	-214.66%	-95.56%
NET CHANGE
Cash From Operating Activities	1.026M	1.903M	-990.0K
Cash From Investing Activities	-13.00K	-166.0K	80.00K
Cash From Financing Activities	-632.0K	-954.0K	20.00K
Net Change In Cash	381.0K	743.0K	-890.0K
YoY Change	-142.81%	-36.22%	-161.81%
FREE CASH FLOW
Cash From Operating Activities	$1.026M	$1.903M	-$990.0K
Capital Expenditures	-$14.00K	$98.00K	$60.00K
Free Cash Flow	$1.040M	$1.805M	-$1.050M
YoY Change	-199.05%	12792.86%	-170.95%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000356037
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2021Q3	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	01854
CY2021	dei	City Area Code CityAreaCode	978
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesNoncurrent
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4394000
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4276000
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1893000
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2020Q3	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2020Q3	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesNoncurrent
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	000-10843
CY2021	dei	Entity Registrant Name EntityRegistrantName	CSP Inc.
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MA
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2441294
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	175 Cabot Street
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Lowell
CY2021	dei	Local Phone Number LocalPhoneNumber	954-5038
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2021	dei	Trading Symbol TradingSymbol	CSPI
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	true
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021Q1	dei	Entity Public Float EntityPublicFloat	33233374
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	4394460
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	20007000
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	19264000
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	142000
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	181000
CY2021Q3	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	18698000
CY2020Q3	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	13362000
CY2021Q3	us-gaap	Net Investment In Lease Current NetInvestmentInLeaseCurrent	68000
CY2020Q3	us-gaap	Net Investment In Lease Current NetInvestmentInLeaseCurrent	336000
CY2021Q3	us-gaap	Inventory Net InventoryNet	3989000
CY2020Q3	us-gaap	Inventory Net InventoryNet	5285000
CY2021Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	1656000
CY2020Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	807000
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	4616000
CY2020Q3	us-gaap	Other Assets Current OtherAssetsCurrent	2535000
CY2021Q3	us-gaap	Assets Current AssetsCurrent	49034000
CY2020Q3	us-gaap	Assets Current AssetsCurrent	41589000
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	764000
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1047000
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1358000
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2014000
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	19000
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	28000
CY2021Q3	us-gaap	Net Investment In Lease Noncurrent NetInvestmentInLeaseNoncurrent	15000
CY2020Q3	us-gaap	Net Investment In Lease Noncurrent NetInvestmentInLeaseNoncurrent	81000
CY2021Q3	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	7522000
CY2020Q3	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	3642000
CY2020Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1149000
CY2021Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	4194000
CY2020Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	3948000
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	68000
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	147000
CY2021Q3	us-gaap	Assets Assets	62974000
CY2020Q3	us-gaap	Assets Assets	53645000
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	13928000
CY2020Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	8523000
CY2021Q3	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	941000
CY2020Q3	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	1573000
CY2021Q3	us-gaap	Notes Payable Current NotesPayableCurrent	757000
CY2020Q3	us-gaap	Notes Payable Current NotesPayableCurrent	1613000
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1893000
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	947000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	308000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	321000
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	17827000
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	12977000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4097000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	6471000
CY2021Q3	us-gaap	Long Term Notes Payable LongTermNotesPayable	876000
CY2020Q3	us-gaap	Long Term Notes Payable LongTermNotesPayable	2485000
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	821000
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1390000
CY2021Q3	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	524000
CY2020Q3	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	586000
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4783000
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	202000
CY2021Q3	us-gaap	Liabilities Liabilities	28928000
CY2020Q3	us-gaap	Liabilities Liabilities	24111000
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	7500000
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	7500000
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4394000
CY2021Q3	cspi	Subleases Lease Receivable SubleasesLeaseReceivable	83000
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4276000
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	45000
CY2020Q3	us-gaap	Common Stock Value CommonStockValue	43000
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	18258000
CY2020Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	16994000
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	25191000
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	24492000
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9448000
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-11995000
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	34046000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	29534000
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	62974000
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	53645000
CY2021	us-gaap	Revenues Revenues	49208000
CY2020	us-gaap	Revenues Revenues	61793000
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	33059000
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	44626000
CY2021	us-gaap	Gross Profit GrossProfit	16149000
CY2020	us-gaap	Gross Profit GrossProfit	17167000
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2887000
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2798000
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	14624000
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	15793000
CY2021	us-gaap	Operating Expenses OperatingExpenses	17511000
CY2020	us-gaap	Operating Expenses OperatingExpenses	18591000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-1362000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-1424000
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-488000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2000
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	350000
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	228000
CY2021	us-gaap	Interest Income Other InterestIncomeOther	575000
CY2020	us-gaap	Interest Income Other InterestIncomeOther	582000
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	2196000
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	107000
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	10000
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2040000
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	362000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	678000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1062000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	444000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	384000
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	234000
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1446000
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	465000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	699000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1446000
CY2021	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	666000
CY2020	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	-1446000
CY2021	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	223000
CY2020	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	-1446000
CY2021	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic	443000
CY2021	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	666000
CY2020	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	-1446000
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.05
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.36
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerBasicShare	0.11
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.36
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4151000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4028000
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.05
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.36
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerDilutedShare	0.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.36
CY2021	cspi	Weighted Average Shares Outstanding Continuing Operations Diluted WeightedAverageSharesOutstandingContinuingOperationsDiluted	4220000
CY2020	cspi	Weighted Average Shares Outstanding Continuing Operations Diluted WeightedAverageSharesOutstandingContinuingOperationsDiluted	4028000
CY2021	cspi	Weighted Average Shares Outstanding Discontinued Operations Diluted WeightedAverageSharesOutstandingDiscontinuedOperationsDiluted	4220000
CY2020	cspi	Weighted Average Shares Outstanding Discontinued Operations Diluted WeightedAverageSharesOutstandingDiscontinuedOperationsDiluted	4028000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4220000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4028000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	699000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1446000
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-1901000
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-183000
CY2021	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	646000
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	415000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2547000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	598000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3246000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-848000
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	30428000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1446000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	598000
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	982000
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1000
CY2020	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	277000
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	46000
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
CY2020	us-gaap	Dividends Cash DividendsCash	1262000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	29534000
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	29534000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	699000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2547000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	981000
CY2020	us-gaap	Profit Loss ProfitLoss	-1446000
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	36000
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	430000
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	648000
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	653000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	981000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	982000
CY2021	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1149000
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-797000
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2000
CY2021	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	283000
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	34046000
CY2021	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	234000
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-1446000
CY2021	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	465000
CY2021	us-gaap	Profit Loss ProfitLoss	699000
CY2021	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	379000
CY2020	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	443000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-14000
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-488000
CY2020	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-2000
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	52000
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	42000
CY2021	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	176000
CY2020	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	115000
CY2021	us-gaap	Other Noncash Expense OtherNoncashExpense	97000
CY2020	us-gaap	Other Noncash Expense OtherNoncashExpense	16000
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	2196000
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	5375000
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	-1755000
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-1263000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2105000
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	849000
CY2020	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	320000
CY2021	cspi	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-10000
CY2020	cspi	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	2667000
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1993000
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-2089000
CY2021	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-334000
CY2020	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-367000
CY2021	us-gaap	Increase Decrease In Long Term Receivables Current IncreaseDecreaseInLongTermReceivablesCurrent	3880000
CY2020	us-gaap	Increase Decrease In Long Term Receivables Current IncreaseDecreaseInLongTermReceivablesCurrent	-1685000
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5729000
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-8030000
CY2021	cspi	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-661000
CY2020	cspi	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	2068000
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	946000
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	206000
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-301000
CY2020	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-305000
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-65000
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-108000
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	4579000
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-428000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1903000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	244000
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	70000
CY2020	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	115000
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	98000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	230000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-166000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-345000
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	1262000
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-631000
CY2020	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-886000
CY2020	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	4217000
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	332000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1137000
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	274000
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	333000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	46000
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	283000
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	279000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-954000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	832000
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-40000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	434000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	743000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1165000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	19264000
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	18099000
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20007000
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	19264000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	114000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	22000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	189000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	277000
CY2021	cspi	Noncash Gain On Extinguishment Of Debt NoncashGainOnExtinguishmentOfDebt	2196000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	216000
CY2021	cspi	Customer Financing For Inventory Sold CustomerFinancingForInventorySold	16014000
CY2020	cspi	Customer Financing For Inventory Sold CustomerFinancingForInventorySold	1988000
CY2021	cspi	Vendor Financing For Inventory Purchased VendorFinancingForInventoryPurchased	8399000
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2900000
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2800000
CY2021	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0
CY2021Q3	cspi	Number Of Leases Not Yet Commenced NumberOfLeasesNotYetCommenced	0
CY2021Q3	us-gaap	Lease Practical Expedient Lessor Single Lease Component LeasePracticalExpedientLessorSingleLeaseComponent	true
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	0
CY2021Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2300000
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4100000
CY2021	cspi	Number Of Years Defined Benefit Plans Are Closed To Newly Hired Employees NumberOfYearsDefinedBenefitPlansAreClosedToNewlyHiredEmployees	P2Y
CY2021	cspi	Number Of Years Supplementary Retirement Plans Are Closed To Newly Hired Employees NumberOfYearsSupplementaryRetirementPlansAreClosedToNewlyHiredEmployees	P2Y
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2
CY2021	us-gaap	Revenues Revenues	49208000
CY2020	us-gaap	Revenues Revenues	61793000
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	2700000
CY2020Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	1000000.0
CY2021Q3	us-gaap	Contract With Customer Asset Net Noncurrent ContractWithCustomerAssetNetNoncurrent	0
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	900000
CY2021Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	400000
CY2020Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	200000
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	800000
CY2021	us-gaap	Revenue Practical Expedient Incremental Cost Of Obtaining Contract RevenuePracticalExpedientIncrementalCostOfObtainingContract	true
CY2021Q3	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	137000
CY2020Q3	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	130000
CY2021Q3	us-gaap	Capitalized Contract Cost Net Noncurrent CapitalizedContractCostNetNoncurrent	0
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	442000
CY2020	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	332000
CY2021	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0
CY2021	cspi	Performance Obligation Payment Terms PerformanceObligationPaymentTerms	P30D
CY2021	us-gaap	Revenue Remaining Performance Obligation Optional Exemption Variable Consideration RevenueRemainingPerformanceObligationOptionalExemptionVariableConsideration	true
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1404000
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	670000
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	61000
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2135000
CY2021	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	234000
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1446000
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	465000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	699000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-1446000
CY2021	cspi	Net Income Loss Attributable To Nonvested Common Stock NetIncomeLossAttributableToNonvestedCommonStock	33000
CY2021	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	666000
CY2020	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	-1446000
CY2021	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	223000
CY2020	us-gaap	Net Income Loss From Continuing Operations Available To Common Shareholders Basic NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic	-1446000
CY2021	us-gaap	Net Income Loss From Discontinued Operations Available To Common Shareholders Basic NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic	443000
CY2021	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	666000
CY2020	cspi	Net Income Attributable To Common Stockholders NetIncomeAttributableToCommonStockholders	-1446000
CY2021	cspi	Weighted Average Total Shares Outstanding Basic WeightedAverageTotalSharesOutstandingBasic	4356000
CY2020	cspi	Weighted Average Total Shares Outstanding Basic WeightedAverageTotalSharesOutstandingBasic	4028000
CY2021	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	205000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4151000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4028000
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	69000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4220000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4028000
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.05
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.36
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerBasicShare	0.11
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.36
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.05
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.36
CY2021	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxPerDilutedShare	0.11
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.36
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;text-indent:0pt;margin:0pt 0pt 12pt 18pt;">Use of Estimates</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">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 and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates under different assumptions or conditions.</p>
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	1000000.0
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	1000000.0
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:italic;text-indent:0pt;margin:0pt 0pt 12pt 18pt;">Concentrations of Credit Risk</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:36pt;margin:0pt 0pt 12pt 0pt;">Cash and cash equivalents are maintained with several financial institutions in the U.S. and the U.K. Deposits held with banks may exceed the amount of insurance on such deposits. Generally, these deposits may be redeemed upon demand. The Company has not experienced any losses in such accounts and believes it is not exposed to any significant credit risk on cash and cash equivalents.</p>
CY2021Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	736000
CY2020Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	574000
CY2021Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	289000
CY2020Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	213000
CY2021Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	2964000
CY2020Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	4498000
CY2021Q3	us-gaap	Inventory Net InventoryNet	3989000
CY2020Q3	us-gaap	Inventory Net InventoryNet	5285000
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-235000
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-102000
CY2021	cspi	Income Loss From Before Income Taxes Domestic IncomeLossFromBeforeIncomeTaxesDomestic	1316000
CY2020	cspi	Income Loss From Before Income Taxes Domestic IncomeLossFromBeforeIncomeTaxesDomestic	-941000
CY2021	cspi	Income Loss From Before Income Taxes Foreign IncomeLossFromBeforeIncomeTaxesForeign	-173000
CY2020	cspi	Income Loss From Before Income Taxes Foreign IncomeLossFromBeforeIncomeTaxesForeign	-121000
CY2021	cspi	Income Loss From Before Income Taxes IncomeLossFromBeforeIncomeTaxes	1143000
CY2020	cspi	Income Loss From Before Income Taxes IncomeLossFromBeforeIncomeTaxes	-1062000
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-674000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-435000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-30000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	21000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-704000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-414000
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1148000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	548000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	250000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1148000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	798000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	444000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	384000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	678000
CY2021	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	465000
CY2021	cspi	Income Loss From Before Income Taxes IncomeLossFromBeforeIncomeTaxes	1143000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	240000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-225000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.212
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-38000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.033
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-7000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.007
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	13000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.011
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002
CY2021	cspi	Effective Income Tax Rate Reconciliation Exclusion Of Ppp Loan Forgiveness Income Amount EffectiveIncomeTaxRateReconciliationExclusionOfPPPLoanForgivenessIncomeAmount	-458000
CY2021	cspi	Effective Income Tax Rate Reconciliation Exclusion Of Ppp Loan Forgiveness Income Percent EffectiveIncomeTaxRateReconciliationExclusionOfPPPLoanForgivenessIncomePercent	-0.401
CY2021	us-gaap	Income Tax Reconciliation Disposition Of Business IncomeTaxReconciliationDispositionOfBusiness	-98000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	-0.086
CY2021	cspi	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	-22000
CY2021	cspi	Effective Income Tax Rate Reconciliation Permanent Differences EffectiveIncomeTaxRateReconciliationPermanentDifferences	-0.019
CY2020	cspi	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	-3000
CY2020	cspi	Effective Income Tax Rate Reconciliation Permanent Differences EffectiveIncomeTaxRateReconciliationPermanentDifferences	0.003
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1598000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	1.398
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1005000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.947
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	116000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.101
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	107000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.101
CY2021	cspi	Effective Income Tax Rate Reconciliation Benefit Of Us Federal Nol Carryback EffectiveIncomeTaxRateReconciliationBenefitOfUsFederalNolCarryback	-359000
CY2021	cspi	Effective Income Tax Rate Reconciliation Benefit Of Us Federal Nol Carryback Percent EffectiveIncomeTaxRateReconciliationBenefitOfUsFederalNolCarrybackPercent	-0.314
CY2020	cspi	Effective Income Tax Rate Reconciliation Benefit Of Us Federal Nol Carryback EffectiveIncomeTaxRateReconciliationBenefitOfUsFederalNolCarryback	-222000
CY2020	cspi	Effective Income Tax Rate Reconciliation Benefit Of Us Federal Nol Carryback Percent EffectiveIncomeTaxRateReconciliationBenefitOfUsFederalNolCarrybackPercent	0.209
CY2021	cspi	Effective Income Tax Rate Reconciliation Return To Provision Adjustment Amount EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentAmount	-394000
CY2021	cspi	Effective Income Tax Rate Reconciliation Return To Provision Adjustment Percent EffectiveIncomeTaxRateReconciliationReturnToProvisionAdjustmentPercent	-0.345
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	78000
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.068
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-59000
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.055
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	444000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.388
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	384000
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.362
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	1006000
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	1410000
CY2021Q3	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	61000
CY2020Q3	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	94000
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	628000
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1131000
CY2021Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	232000
CY2020Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	684000
CY2021Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	1141000
CY2020Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Other DeferredTaxAssetsTaxCreditCarryforwardsOther	391000
CY2021Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	123000
CY2020Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	3000
CY2021Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	2333000
CY2020Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	1766000
CY2021Q3	cspi	Deferred Tax Assets Depreciation And Amortization DeferredTaxAssetsDepreciationAndAmortization	190000
CY2020Q3	cspi	Deferred Tax Assets Depreciation And Amortization DeferredTaxAssetsDepreciationAndAmortization	244000
CY2021Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5334000
CY2020Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5235000
CY2021Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5334000
CY2020Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	4086000
CY2021Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0
CY2020Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1149000
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1200000
CY2021Q3	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	7900000
CY2020Q3	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	10300000
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	343000
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	60000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	78000
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	30000
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	265000
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	433000
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	343000
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	9047000
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8943000
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	8283000
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7896000
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	764000
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1047000
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	379000
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	443000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9000
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	9000
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9000
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1000
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	19000
CY2020Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	335000
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1233000
CY2020Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1024000
CY2021Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	300000
CY2020Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	368000
CY2021Q3	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	136000
CY2020Q3	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	161000
CY2021Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	47000
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	11271000
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	5604000
CY2021Q3	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	305000
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	274000
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	569000
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	679000
CY2021Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	67000
CY2020Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	78000
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	13928000
CY2020Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	8523000
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1358000
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2014000
CY2021Q3	us-gaap	Net Investment In Lease Current NetInvestmentInLeaseCurrent	68000
CY2020Q3	us-gaap	Net Investment In Lease Current NetInvestmentInLeaseCurrent	336000
CY2021Q3	us-gaap	Net Investment In Lease Noncurrent NetInvestmentInLeaseNoncurrent	15000
CY2020Q3	us-gaap	Net Investment In Lease Noncurrent NetInvestmentInLeaseNoncurrent	81000
CY2021Q3	us-gaap	Net Investment In Lease NetInvestmentInLease	83000
CY2020Q3	us-gaap	Net Investment In Lease NetInvestmentInLease	417000
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	569000
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	679000
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	821000
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1390000
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	1390000
CY2020	us-gaap	Proceeds From Lease Payments ProceedsFromLeasePayments	451000
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	2069000
CY2021Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	47000
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	274000
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	5000
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	52000
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	52000
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	326000
CY2021	cspi	Lease Cost Gross LeaseCostGross	776000
CY2020	cspi	Lease Cost Gross LeaseCostGross	777000
CY2021	us-gaap	Lease Cost LeaseCost	756000
CY2020	us-gaap	Lease Cost LeaseCost	694000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	613000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	51000
CY2021Q3	cspi	Lessor Sublease Payments Received In Next Twelve Months LessorSubleasePaymentsReceivedInNextTwelveMonths	70000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	439000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	5000
CY2021Q3	cspi	Lessor Sublease Payments Received Two Years LessorSubleasePaymentsReceivedTwoYears	12000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	240000
CY2021Q3	cspi	Lessor Sublease Payments Received Three Years LessorSubleasePaymentsReceivedThreeYears	3000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	182000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1474000
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	56000
CY2021Q3	cspi	Lessor Sublease Payments Received LessorSubleasePaymentsReceived	85000
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	84000
CY2021Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	4000
CY2021Q3	cspi	Subleases Lease Receivable Undiscounted Excess Amount SubleasesLeaseReceivableUndiscountedExcessAmount	2000
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	1390000
CY2021Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	52000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	500
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	3.85
CY2021	us-gaap	Proceeds From Lease Payments ProceedsFromLeasePayments	356000
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	740000
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	757000
CY2021	us-gaap	Short Term Lease Payments ShortTermLeasePayments	47000
CY2020	us-gaap	Short Term Lease Payments ShortTermLeasePayments	38000
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	11000
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	30000
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	274000
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	333000
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	216000
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P2Y9M18D
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y1M6D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.040
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.107
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	78000
CY2019Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	105000
CY2021	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	13000
CY2020	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	7000
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	24000
CY2020	us-gaap	Product Warranty Expense ProductWarrantyExpense	34000
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	67000
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	78000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0
CY2021	cspi	Number Of Years Defined Benefit Plans Are Closed To Newly Hired Employees NumberOfYearsDefinedBenefitPlansAreClosedToNewlyHiredEmployees	P2Y
CY2021	cspi	Number Of Years Supplementary Retirement Plans Are Closed To Newly Hired Employees NumberOfYearsSupplementaryRetirementPlansAreClosedToNewlyHiredEmployees	P2Y
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1972000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-150000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	4405000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	6792000
CY2021Q3	cspi	Defined Benefit Plan Deferred Tax DefinedBenefitPlanDeferredTax	95000
CY2020Q3	cspi	Defined Benefit Plan Deferred Tax DefinedBenefitPlanDeferredTax	24000
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	4218000
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	6120000
CY2021Q3	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-92000
CY2020Q3	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-648000
CY2021Q3	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	16326000
CY2020Q3	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	16532000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P2Y2M15D
CY2019Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested	2560000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	308000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	321000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4097000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	6471000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	4405000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	6792000
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	4200000
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	6100000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Amortization Next Fiscal Year DefinedBenefitPlanExpectedAmortizationNextFiscalYear	146000
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	6800000
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	4400000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	400000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	436000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	476000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	515000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	516000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	531000
CY2021Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	1339000
CY2021Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	11900000
CY2021Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	11921000
CY2020Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	9740000
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	174000
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	156000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	981000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	982000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	96750
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	13.28
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	84743
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	9.66
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	202742
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	11.82
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P2Y2M15D
CY2020Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested	1750000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	103465
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	8.60
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	500
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	3.85
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	981000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	982000
	us-gaap	Employee Service Share Based Compensation Cash Flow Effect Cash Used To Settle Awards EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards	0
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2000
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.75
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1000
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.64
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	500
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	3.85
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	500
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P0Y3M14D
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4000
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	500
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.43
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P0Y3M14D
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	4000
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	500
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	3.43
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1	P0Y3M14D
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	4000
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	5000
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	190735
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	10.12
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	90395
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	11.79
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	18750
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	10.37
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	197063
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	10.28
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Weighted Average Remaining Contractual Terms ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms	P2Y1M24D
CY2021Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Aggregate Intrinsic Value Nonvested SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested	1760000
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	1400000
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y3M25D
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	1100000
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	800000
CY2013Q4	cspi	Employee Stock Purchase Plan Espp Sharesin Espp EmployeeStockPurchasePlanESPPSharesinESPP	250000
CY2021	cspi	Purchase Price As Percentage Of Fair Market Value PurchasePriceAsPercentageOfFairMarketValue	0.95
CY2021	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	32939
CY2020	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	32222
CY2011Q1	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	250000
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	6400
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0
CY2021Q3	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	194000
CY2021	us-gaap	Revenues Revenues	49208000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-1362000
CY2021Q3	us-gaap	Assets Assets	62974000
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	98000
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	388000
CY2020	us-gaap	Revenues Revenues	61793000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-1424000
CY2021	cspi	Percent Of Total Sales PercentOfTotalSales	1
CY2021	cspi	Percent Of Total Sales PercentOfTotalSales	1
CY2020Q3	us-gaap	Assets Assets	53645000
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	230000
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	452000
CY2021	us-gaap	Revenues Revenues	49208000
CY2020	us-gaap	Revenues Revenues	61793000
CY2020	cspi	Percent Of Total Sales PercentOfTotalSales	1
CY2020	cspi	Percent Of Total Sales PercentOfTotalSales	1
CY2020Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1149000
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
CY2020Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15

Files In Submission

Name	View Source	Status
R2.htm	Edgar Link	pending
0000356037-21-000021-index-headers.html	Edgar Link	pending
0000356037-21-000021-index.html	Edgar Link	pending
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0000356037-21-000021-xbrl.zip	Edgar Link	pending
cspi-20210930.xsd	Edgar Link	pending
cspi-20210930ex21134b3d3.htm	Edgar Link	pending
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cspi-20210930x10k.htm	Edgar Link	pending
cspi-20210930x10k_htm.xml	Edgar Link	completed
cspi-20210930_cal.xml	Edgar Link	unprocessable
cspi-20210930_def.xml	Edgar Link	unprocessable
cspi-20210930_lab.xml	Edgar Link	unprocessable
cspi-20210930_pre.xml	Edgar Link	unprocessable
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$CSPI
CSP INC /MA/ Stock $cspi

2021 Q3 Form 10-K Financial Statement

#000035603721000021 Filed on December 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CSPI CSP INC /MA/ Stock $cspi

2021 Q3 Form 10-K Financial Statement

#000035603721000021 Filed on December 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CSPI
CSP INC /MA/ Stock $cspi