$AMSC
AMERICAN SUPERCONDUCTOR CORP /DE/ Stock $amsc

$amsc Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000143774921025699 Filed on November 08, 2021

Income Statement

Concept	2021 Q3	2020 Q3
Revenue	$27.91M	$21.12M
YoY Change	32.16%	50.71%
Cost Of Revenue	$24.65M	$15.60M
YoY Change	58.03%	52.19%
Gross Profit	$3.261M	$5.521M
YoY Change	-40.93%	46.68%
Gross Profit Margin	11.68%	26.14%
Selling, General & Admin	$6.697M	$5.887M
YoY Change	13.76%	9.02%
% of Gross Profit	205.37%	106.63%
Research & Development	$2.669M	$2.719M
YoY Change	-1.84%	13.39%
% of Gross Profit	81.85%	49.25%
Depreciation & Amortization	$700.0K	$900.0K
YoY Change	-22.22%	-10.0%
% of Gross Profit	21.47%	16.3%
Operating Expenses	$7.563M	$8.727M
YoY Change	-13.34%	10.71%
Operating Profit	-$4.302M	-$3.206M
YoY Change	34.19%	-22.17%
Interest Expense	$25.00K	$161.0K
YoY Change	-84.47%	-51.94%
% of Operating Profit
Other Income/Expense, Net	$24.00K	-$476.0K
YoY Change	-105.04%	-131.32%
Pretax Income	-$4.253M	-$3.521M
YoY Change	20.79%	214.66%
Income Tax	$200.0K	$200.0K
% Of Pretax Income
Net Earnings	-$4.434M	-$3.712M
YoY Change	19.45%	349.94%
Net Earnings / Revenue	-15.89%	-17.58%
Basic Earnings Per Share	-$0.16	-$0.17
Diluted Earnings Per Share	-$0.16	-$0.17
COMMON SHARES
Basic Shares Outstanding	27.25M	21.86M
Diluted Shares Outstanding	27.25M	21.86M

Balance Sheet

Concept	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$48.50M	$51.40M
YoY Change	-5.64%	-2.65%
Cash & Equivalents	$48.50M	$41.25M
Short-Term Investments	$0.00	$10.20M
Other Short-Term Assets	$7.247M	$4.000M
YoY Change	81.18%	-20.0%
Inventory	$21.57M	$14.16M
Prepaid Expenses
Receivables	$25.18M	$16.81M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$102.5M	$86.41M
YoY Change	18.62%	3.56%
LONG-TERM ASSETS
Property, Plant & Equipment	$14.61M	$8.140M
YoY Change	79.5%	-5.46%
Goodwill	$43.47M	$1.719M
YoY Change	2428.85%	0.0%
Intangibles	$12.65M	$3.309M
YoY Change	282.14%	21.65%
Long-Term Investments		$0.00
YoY Change		-100.0%
Other Assets	$340.0K	$333.0K
YoY Change	2.1%	2.46%
Total Long-Term Assets	$81.87M	$24.82M
YoY Change	229.86%	-27.01%
TOTAL ASSETS
Total Short-Term Assets	$102.5M	$86.41M
Total Long-Term Assets	$81.87M	$24.82M
Total Assets	$184.4M	$111.2M
YoY Change	65.76%	-5.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$14.92M	$7.655M
YoY Change	94.91%	24.19%
Accrued Expenses	$11.55M	$9.700M
YoY Change	19.09%	18.29%
Deferred Revenue	$23.87M	$13.55M
YoY Change	76.21%	62.34%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$77.00K
YoY Change
Total Short-Term Liabilities	$57.26M	$32.59M
YoY Change	75.72%	16.17%
LONG-TERM LIABILITIES
Long-Term Debt	$125.0K	$0.00
YoY Change
Other Long-Term Liabilities	$23.00K	$31.00K
YoY Change	-25.81%	-29.55%
Total Long-Term Liabilities	$148.0K	$31.00K
YoY Change	377.42%	-29.55%
TOTAL LIABILITIES
Total Short-Term Liabilities	$57.26M	$32.59M
Total Long-Term Liabilities	$148.0K	$31.00K
Total Liabilities	$68.27M	$44.81M
YoY Change	52.36%	9.94%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.011B	-$985.8M
YoY Change	2.57%	2.06%
Common Stock	$1.131B	$1.056B
YoY Change	7.14%	0.93%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$3.639M	$3.336M
YoY Change	9.08%	28.01%
Treasury Stock Shares
Shareholders Equity	$116.1M	$66.42M
YoY Change
Total Liabilities & Shareholders Equity	$184.4M	$111.2M
YoY Change	65.76%	-5.29%

Cashflow Statement

Concept	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	-$4.434M	-$3.712M
YoY Change	19.45%	349.94%
Depreciation, Depletion And Amortization	$700.0K	$900.0K
YoY Change	-22.22%	-10.0%
Cash From Operating Activities	-$5.905M	-$3.430M
YoY Change	72.16%	-25.76%
INVESTING ACTIVITIES
Capital Expenditures	-$286.0K	-$690.0K
YoY Change	-58.55%	-23.33%
Acquisitions
YoY Change
Other Investing Activities	$5.164M	$24.94M
YoY Change	-79.29%	-348.65%
Cash From Investing Activities	$4.878M	$24.25M
YoY Change	-79.88%	-321.87%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	107.0K	-190.0K
YoY Change	-156.32%	46.15%
NET CHANGE
Cash From Operating Activities	-5.905M	-3.430M
Cash From Investing Activities	4.878M	24.25M
Cash From Financing Activities	107.0K	-190.0K
Net Change In Cash	-920.0K	20.63M
YoY Change	-104.46%	-231.57%
FREE CASH FLOW
Cash From Operating Activities	-$5.905M	-$3.430M
Capital Expenditures	-$286.0K	-$690.0K
Free Cash Flow	-$5.619M	-$2.740M
YoY Change	105.07%	-26.34%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	28395386
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021Q3	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	0	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2021Q2	us-gaap	Finance Lease Liability FinanceLeaseLiability	13200	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	48501000	USD
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	67814000	USD
CY2021Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	0	USD
CY2021Q1	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	5140000	USD
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	25177000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	13267000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	21574000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	13306000	USD
CY2021Q3	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	4924000	USD
CY2021Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3546000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2323000	USD
CY2021Q1	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	2157000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	102499000	USD
CY2021Q1	us-gaap	Assets Current AssetsCurrent	105230000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	14611000	USD
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	8997000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12645000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9153000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3588000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3747000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	43471000	USD
CY2021Q1	us-gaap	Goodwill Goodwill	34634000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	6165000	USD
CY2021Q1	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5568000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1054000	USD
CY2021Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1223000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	340000	USD
CY2021Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	314000	USD
CY2021Q3	us-gaap	Assets Assets	184373000	USD
CY2021Q1	us-gaap	Assets Assets	168866000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	27891000	USD
CY2021Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	19810000	USD
CY2021Q3	amsc	Lease Liability Current LeaseLiabilityCurrent	705000	USD
CY2021Q1	amsc	Lease Liability Current LeaseLiabilityCurrent	612000	USD
CY2021Q3	us-gaap	Debt Current DebtCurrent	72000	USD
CY2021Q1	us-gaap	Debt Current DebtCurrent	0	USD
CY2021Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	4720000	USD
CY2021Q1	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	7050000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	23871000	USD
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	13266000	USD
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	57259000	USD
CY2021Q1	us-gaap	Liabilities Current LiabilitiesCurrent	40738000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	7647000	USD
CY2021Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	7991000	USD
CY2021Q3	amsc	Lease Liability Noncurrent LeaseLiabilityNoncurrent	3012000	USD
CY2021Q1	amsc	Lease Liability Noncurrent LeaseLiabilityNoncurrent	3246000	USD
CY2021Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	203000	USD
CY2021Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	274000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	125000	USD
CY2021Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	23000	USD
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	25000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	68269000	USD
CY2021Q1	us-gaap	Liabilities Liabilities	52274000	USD
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	288000	USD
CY2021Q1	us-gaap	Common Stock Value CommonStockValue	280000	USD
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1130921000	USD
CY2021Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	1121495000	USD
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	3639000	USD
CY2021Q1	us-gaap	Treasury Stock Value TreasuryStockValue	3593000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-316000	USD
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-277000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1011150000	USD
CY2021Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1001313000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	116104000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	116592000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	184373000	USD
CY2021Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	168866000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	27908000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	21117000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	53328000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	42329000	USD
CY2020Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	161000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	57000	USD
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	320000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	7563000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	8727000	USD
	us-gaap	Operating Expenses OperatingExpenses	18431000	USD
	us-gaap	Operating Expenses OperatingExpenses	16984000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-4302000	USD
CY2021Q3	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	627000	USD
CY2020Q3	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	121000	USD
	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	1212000	USD
	us-gaap	Amortization Of Acquisition Costs AmortizationOfAcquisitionCosts	242000	USD
CY2021Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-2430000	USD
CY2020Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-2330000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-3206000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-11801000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-6423000	USD
CY2021Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	25000	USD
CY2021Q3	us-gaap	Cost Of Revenue CostOfRevenue	24647000	USD
CY2020Q3	us-gaap	Cost Of Revenue CostOfRevenue	15596000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	46698000	USD
	us-gaap	Cost Of Revenue CostOfRevenue	31768000	USD
CY2021Q3	us-gaap	Gross Profit GrossProfit	3261000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	5521000	USD
	us-gaap	Gross Profit GrossProfit	6630000	USD
	us-gaap	Gross Profit GrossProfit	10561000	USD
CY2021Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2669000	USD
CY2020Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	2719000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5711000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5218000	USD
CY2021Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	6697000	USD
CY2020Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	5887000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	13838000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	11524000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	24000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-476000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-40000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-646000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-4253000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-3521000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11784000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-6749000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	181000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	191000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1947000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	380000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-4434000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-3712000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-9837000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-7129000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.16
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.36
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	293000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-43000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-3712000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	66420000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-9837000	USD
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.33
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.16
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.36
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.33
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27252000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21860000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27040000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21775000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27252000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21860000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27040000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21775000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-4434000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-3712000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-9837000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-7129000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	24000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-43000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-39000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-46000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	24000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-43000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-39000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-46000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-4410000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-3755000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-9876000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7175000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	116592000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1292000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	112000	USD
CY2021Q2	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	4387000	USD
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	46000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-63000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-5403000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	118553000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	125000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	598000	USD
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1101000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	137000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	24000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-4434000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	116104000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	72219000	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	909000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	88000	USD
CY2020Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	377000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-3417000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	69419000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	99000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	849000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	101000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-7129000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2631000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	2009000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2393000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	1758000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1203000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1250000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2137000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-2330000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	0	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-197000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-233000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-1000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-272000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8657000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-157000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	475000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3591000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1521000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	866000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	3475000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-3192000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	281000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-4636000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-11734000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6553000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	510000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1326000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	0	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	25006000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	11479000	USD
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	-0	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	5189000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	30000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-63000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6830000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	23743000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	46000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	670000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	18000	USD
	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	-0	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	125000	USD
	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	99000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	61000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-571000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-47000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	53000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-18550000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	16672000	USD
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	75539000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	30864000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	56989000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	47536000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	306000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	275000	USD
	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	2529000	USD
	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	189000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1011100000	USD
CY2021Q3	amsc	Cash Cash Equivalents And Marketable Securities CashCashEquivalentsAndMarketableSecurities	48500000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-11700000	USD
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	27908000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	32233000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	56158000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	64860000	USD
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-4346000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-4963000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-11131000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-8591000	USD
CY2021Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-4548000	USD
CY2020Q3	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-3855000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-11809000	USD
	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-3746000	USD
CY2021Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.17
CY2020Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.17
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.44
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	-0.16
CY2021Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	-0.17
CY2020Q3	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	-0.17
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	-0.44
	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	-0.16
CY2021Q3	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Basic BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingBasic	27253
CY2020Q3	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Basic BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingBasic	23036
	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Basic BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingBasic	27101
	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Basic BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingBasic	22951
CY2021Q3	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Diluted BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingDiluted	27253
CY2020Q3	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Diluted BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingDiluted	23036
	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Diluted BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingDiluted	27101
	amsc	Business Acquisition Weighted Average Number Of Shares Outstanding Diluted BusinessAcquisitionWeightedAverageNumberOfSharesOutstandingDiluted	22951
CY2021Q3	amsc	Revenue Performance Obligation Satisfied Revenue Recognized Percentage RevenuePerformanceObligationSatisfiedRevenueRecognizedPercentage	0.86	pure
	amsc	Revenue Performance Obligation Satisfied Revenue Recognized Percentage RevenuePerformanceObligationSatisfiedRevenueRecognizedPercentage	0.82	pure
CY2020Q3	amsc	Revenue Performance Obligation Satisfied Revenue Recognized Percentage RevenuePerformanceObligationSatisfiedRevenueRecognizedPercentage	0.78	pure
	amsc	Revenue Performance Obligation Satisfied Revenue Recognized Percentage RevenuePerformanceObligationSatisfiedRevenueRecognizedPercentage	0.79	pure
CY2021Q1	amsc	Contract With Customer Asset Unbilled Ar Net ContractWithCustomerAssetUnbilledARNet	5765000	USD
CY2021Q1	amsc	Contract With Customer Asset Deferred Program Costs Net ContractWithCustomerAssetDeferredProgramCostsNet	977000	USD
CY2021Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	21257000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Change In Contract Costs ContractWithCustomerAssetDeferredProgramCostsChangeInContractCosts	2277000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Increase For Balances Acquired ContractWithCustomerAssetDeferredProgramCostsIncreaseForBalancesAcquired	634000	USD
	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	10048000	USD
	amsc	Contract With Customer Asset Unbilled Ar Change In Time Frame Performance Obligation Satisfied Revenue Recognized ContractWithCustomerAssetUnbilledARChangeInTimeFramePerformanceObligationSatisfiedRevenueRecognized	-4807000	USD
	us-gaap	Contract With Customer Liability Change In Timeframe Performance Obligation Satisfied Revenue Recognized ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized	34344000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Contract Costs Recognized ContractWithCustomerAssetDeferredProgramCostsContractCostsRecognized	-3055000	USD
	amsc	Contract With Customer Asset Unbilled Ar Revenue Recognized ContractWithCustomerAssetUnbilledARRevenueRecognized	7838000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-34169000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Other Changes ContractWithCustomerAssetDeferredProgramCostsOtherChanges	-3000	USD
	amsc	Contract With Customer Liability Other Changes ContractWithCustomerLiabilityOtherChanges	38000	USD
CY2021Q3	amsc	Contract With Customer Asset Unbilled Ar Net ContractWithCustomerAssetUnbilledARNet	8796000	USD
CY2021Q3	amsc	Contract With Customer Asset Deferred Program Costs Net ContractWithCustomerAssetDeferredProgramCostsNet	830000	USD
CY2021Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	31518000	USD
CY2020Q1	amsc	Contract With Customer Asset Unbilled Ar Net ContractWithCustomerAssetUnbilledARNet	5711000	USD
CY2020Q1	amsc	Contract With Customer Asset Deferred Program Costs Net ContractWithCustomerAssetDeferredProgramCostsNet	1631000	USD
CY2020Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	26142000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Change In Contract Costs ContractWithCustomerAssetDeferredProgramCostsChangeInContractCosts	3279000	USD
	amsc	Contract With Customer Asset Unbilled Ar Change In Time Frame Performance Obligation Satisfied Revenue Recognized ContractWithCustomerAssetUnbilledARChangeInTimeFramePerformanceObligationSatisfiedRevenueRecognized	-5929000	USD
	us-gaap	Contract With Customer Liability Change In Timeframe Performance Obligation Satisfied Revenue Recognized ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized	23931000	USD
	amsc	Contract With Customer Asset Deferred Program Costs Contract Costs Recognized ContractWithCustomerAssetDeferredProgramCostsContractCostsRecognized	-3314000	USD
	amsc	Contract With Customer Asset Unbilled Ar Revenue Recognized ContractWithCustomerAssetUnbilledARRevenueRecognized	6186000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-28678000	USD
	amsc	Contract With Customer Asset Unbilled Ar Other Changes ContractWithCustomerAssetUnbilledAROtherChanges	0	USD
	amsc	Contract With Customer Asset Deferred Program Costs Other Changes ContractWithCustomerAssetDeferredProgramCostsOtherChanges	18000	USD
	amsc	Contract With Customer Liability Other Changes ContractWithCustomerLiabilityOtherChanges	561000	USD
CY2020Q3	amsc	Contract With Customer Asset Unbilled Ar Net ContractWithCustomerAssetUnbilledARNet	5968000	USD
CY2020Q3	amsc	Contract With Customer Asset Deferred Program Costs Net ContractWithCustomerAssetDeferredProgramCostsNet	1614000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	21956000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	89500000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	10500000	USD
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1101000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	849000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2393000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1758000	USD
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1100000
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-4434000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	-3712000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-9837000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-7129000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	28360000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	23057000
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	28141000
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	22943000
CY2021Q3	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1108000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1197000
	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1101000
	us-gaap	Weighted Average Number Of Shares Common Stock Subject To Repurchase Or Cancellation WeightedAverageNumberOfSharesCommonStockSubjectToRepurchaseOrCancellation	1168000
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27252000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21860000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	27040000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	21775000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27252000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21860000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	27040000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21775000
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.16
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.36
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.33
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.16
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.36
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.33
CY2021Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	18051000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	5406000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	12645000	USD
CY2021Q1	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	13270000	USD
CY2021Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4117000	USD
CY2021Q1	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9153000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1200000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	100000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	200000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1358000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2772000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2152000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1648000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1221000	USD
CY2021Q3	amsc	Finitelived Intangible Asset Expected Amortization After Year Four FinitelivedIntangibleAssetExpectedAmortizationAfterYearFour	1694000	USD
CY2021Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	10845000	USD
CY2021Q3	us-gaap	Marketable Securities MarketableSecurities	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Gain Loss DebtSecuritiesAvailableForSaleUnrealizedGainLoss	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Unrealized Gain Loss DebtSecuritiesAvailableForSaleUnrealizedGainLoss	-200000	USD
	us-gaap	Debt Securities Available For Sale Unrealized Gain Loss DebtSecuritiesAvailableForSaleUnrealizedGainLoss	-100000	USD
CY2021Q3	us-gaap	Billed Contract Receivables BilledContractReceivables	16381000	USD
CY2021Q1	us-gaap	Billed Contract Receivables BilledContractReceivables	7502000	USD
CY2021Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	8796000	USD
CY2021Q1	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	5765000	USD
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	25177000	USD
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	13267000	USD
CY2021Q3	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	11396000	USD
CY2021Q1	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	8255000	USD
CY2021Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	7533000	USD
CY2021Q1	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	3297000	USD
CY2021Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	1815000	USD
CY2021Q1	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	777000	USD
CY2021Q3	amsc	Inventory For Longterm Contracts Or Programs Net Of Reserves InventoryForLongtermContractsOrProgramsNetOfReserves	830000	USD
CY2021Q1	amsc	Inventory For Longterm Contracts Or Programs Net Of Reserves InventoryForLongtermContractsOrProgramsNetOfReserves	977000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	21574000	USD
CY2021Q1	us-gaap	Inventory Net InventoryNet	13306000	USD
CY2021Q3	us-gaap	Inventory Write Down InventoryWriteDown	600000	USD
CY2020Q3	us-gaap	Inventory Write Down InventoryWriteDown	500000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1200000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1300000	USD
CY2021Q3	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	58315000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	51413000	USD
CY2021Q3	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	43704000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	42416000	USD
CY2021Q3	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	14611000	USD
CY2021Q1	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	8997000	USD
CY2021Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	700000	USD
CY2020Q3	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	900000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1300000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1800000	USD
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	14920000	USD
CY2021Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	5353000	USD
CY2021Q3	amsc	Accrued Inventories In Transit AccruedInventoriesInTransit	1772000	USD
CY2021Q1	amsc	Accrued Inventories In Transit AccruedInventoriesInTransit	1460000	USD
CY2021Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2993000	USD
CY2021Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	2369000	USD
CY2021Q3	us-gaap	Deposit Liability Current DepositLiabilityCurrent	1479000	USD
CY2021Q1	us-gaap	Deposit Liability Current DepositLiabilityCurrent	1035000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	3932000	USD
CY2021Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	7018000	USD
CY2021Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	640000	USD
CY2021Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	522000	USD
CY2021Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2155000	USD
CY2021Q1	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2053000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	27891000	USD
CY2021Q1	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	19810000	USD
CY2021Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2187000	USD
CY2020Q2	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2168000	USD
CY2021Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2053000	USD
CY2020Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2015000	USD
CY2021Q3	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2020Q3	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	248000	USD
	us-gaap	Product Warranty Accrual Additions From Business Acquisition ProductWarrantyAccrualAdditionsFromBusinessAcquisition	0	USD
CY2021Q3	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	206000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	148000	USD
	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	314000	USD
	us-gaap	Product Warranty Accrual Preexisting Increase Decrease ProductWarrantyAccrualPreexistingIncreaseDecrease	384000	USD
CY2021Q3	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	238000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	207000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	460000	USD
	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	290000	USD
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2155000	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2109000	USD
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2155000	USD
CY2020Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2109000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	200000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1900000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	200000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	400000	USD
CY2021Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	2300000	USD
	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-2300000	USD
CY2021Q3	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	4700000	USD
CY2021Q2	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	7200000	USD
CY2021Q1	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	7100000	USD
CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	6700000	USD
CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	4000000.0	USD
CY2021Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-2400000	USD
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	-2300000	USD
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	10700	USD
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	2500	USD
CY2021Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	11000	USD
CY2021Q1	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	0	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3588000	USD
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3747000	USD
CY2021Q3	amsc	Operating And Finance Lease Rightofuse Asset OperatingAndFinanceLeaseRightofuseAsset	3599000	USD
CY2021Q1	amsc	Operating And Finance Lease Rightofuse Asset OperatingAndFinanceLeaseRightofuseAsset	3747000	USD
CY2021Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5000	USD
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	0	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	700000	USD
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	612000	USD
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	5000	USD
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	0	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3007000	USD
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3246000	USD
CY2021Q3	amsc	Operating And Financing Lease Liabilities OperatingAndFinancingLeaseLiabilities	3717000	USD
CY2021Q1	amsc	Operating And Financing Lease Liabilities OperatingAndFinancingLeaseLiabilities	3858000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y3M14D
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M25D
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0658	pure
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0672	pure
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	798000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	674000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	672000	USD
CY2021Q3	amsc	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	934000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	4424000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	707000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	3717000	USD
CY2021Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	238000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	469000	USD
CY2021Q3	us-gaap	Variable Lease Cost VariableLeaseCost	32000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	63000	USD
CY2021Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	65000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	131000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	335000	USD
	us-gaap	Lease Cost LeaseCost	663000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	214000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	392000	USD
CY2020Q3	us-gaap	Variable Lease Cost VariableLeaseCost	28000	USD
	us-gaap	Variable Lease Cost VariableLeaseCost	55000	USD
CY2020Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	510000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	678000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	752000	USD
	us-gaap	Lease Cost LeaseCost	1125000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	460000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	886000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	6200000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2300000	USD
CY2020Q1	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	5600000	USD
CY2021Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	2200000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	pure
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	pure
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	27908000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	21117000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	53328000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	42329000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-4302000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-3206000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-11801000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-6423000	USD
CY2021Q3	us-gaap	Assets Assets	184373000	USD
CY2021Q1	us-gaap	Assets Assets	168866000	USD

Files In Submission

Name	View Source	Status
0001437749-21-025699-index-headers.html	Edgar Link	pending
0001437749-21-025699-index.html	Edgar Link	pending
0001437749-21-025699.txt	Edgar Link	pending
0001437749-21-025699-xbrl.zip	Edgar Link	pending
amsc-20210930.xsd	Edgar Link	pending
amsc-20210930_cal.xml	Edgar Link	unprocessable
amsc-20210930_def.xml	Edgar Link	unprocessable
amsc-20210930_lab.xml	Edgar Link	unprocessable
amsc-20210930_pre.xml	Edgar Link	unprocessable
amsc20210930_10q.htm	Edgar Link	pending
amsc20210930_10q_htm.xml	Edgar Link	completed
ex_275483.htm	Edgar Link	pending
ex_275484.htm	Edgar Link	pending
ex_275485.htm	Edgar Link	pending
ex_275486.htm	Edgar Link	pending
ex_296201.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AMSC
AMERICAN SUPERCONDUCTOR CORP /DE/ Stock $amsc

2021 Q3 Form 10-Q Financial Statement

#000143774921025699 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMSC AMERICAN SUPERCONDUCTOR CORP /DE/ Stock $amsc

2021 Q3 Form 10-Q Financial Statement

#000143774921025699 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AMSC
AMERICAN SUPERCONDUCTOR CORP /DE/ Stock $amsc