XML 24 R13.htm IDEA: XBRL DOCUMENT
v3.19.2

Note 7 - Accounts Receivable | 3 Months Ended
--- | ---
Jun. 30, 2019
Notes to Financial Statements |
Accounts Receivable [Text Block] | 7. Accounts Receivable Accounts receivable at June 30, 2019 and March 31, 2019 consisted of the following (in thousands):
|  | June 30, 2019 |  |  | March 31, 2019 |
Accounts receivable (billed) |  | $ | 8,643 |  |  | $ | 5,642 |
Accounts receivable (unbilled) |  |  | 2,093 |  |  |  | 2,213 |
Accounts receivable, net |  | $ | 10,736 |  |  | $ | 7,855 |

X
- Definition The entire disclosure for accounts receivable. + References No definition available. + Details
Name: | amsc_AccountsReceivableTextBlock
Namespace Prefix: | amsc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration