XML 68 R57.htm IDEA: XBRL DOCUMENT v3.19.2

Note 9 - Note Receivable (Details Textual) - 64 Jackson, LLC [Member] $ in Millions		3 Months Ended
	Feb. 01, 2018 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Mar. 28, 2018
Purchase and Sale Agreement, Total Consideration	$ 23.0
Security Deposit	1.0
Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total	$ 6.0
Notes and Loans Receivable, Number of Installments			2
Notes and Loans Receivable, Installment Amount			$ 3.0
Notes Receivable, Stated Interest Rate			1.96%	1.96%
Notes Receivable, Fair Value Disclosure		$ 5.7
Note Receivable Discount Rate		6.00%
Notes and Loans Receivable, Noncurrent Portion of Unamortized Debt Discount		$ 0.3
Deferred Gain on Sale of Property		$ 0.1

X

- Definition

Represents the discount rate on a note receivable.

+ References

No definition available.

+ Details

Name:	amsc_NoteReceivableDiscountRate
Namespace Prefix:	amsc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the amount of each installment for notes and loans receivable.

+ References

No definition available.

+ Details

Name:	amsc_NotesAndLoansReceivableInstallmentAmount
Namespace Prefix:	amsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the noncurrent portion of an unamortized debt discount on notes and loans receivable.

+ References

No definition available.

+ Details

Name:	amsc_NotesAndLoansReceivableNoncurrentPortionOfUnamortizedDebtDiscount
Namespace Prefix:	amsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents the number of installments for notes and loans receivable.

+ References

No definition available.

+ Details

Name:	amsc_NotesAndLoansReceivableNumberOfInstallments
Namespace Prefix:	amsc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the stated interest rate on notes receivable.

+ References

No definition available.

+ Details

Name:	amsc_NotesReceivableStatedInterestRate
Namespace Prefix:	amsc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the amount of consideration received under a purchase and sale agreement.

+ References

No definition available.

+ Details

Name:	amsc_PurchaseAndSaleAgreementTotalConsideration
Namespace Prefix:	amsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of gain on the sale of property that does not qualify for gain recognition as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredGainOnSaleOfProperty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesAndLoansReceivableNetNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesReceivableFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_SecurityDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	srt_CounterpartyNameAxis=amsc_SixtyFourJacksonLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: