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Note 7 - Accounts Receivable | 6 Months Ended
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Sep. 30, 2020
Notes to Financial Statements |
Accounts Receivable [Text Block] | 7. Accounts Receivable Accounts receivable at September 30, 2020 and March 31, 2020 consisted of the following (in thousands):
|  | September 30, 2020 |  |  | March 31, 2020 |
Accounts receivable (billed) |  | $ | 10,865 |  |  | $ | 11,276 |
Accounts receivable (unbilled) |  |  | 5,968 |  |  |  | 5,711 |
Less: Allowance for doubtful accounts |  |  | (23 | ) |  |  | — |
Accounts receivable, net |  | $ | 16,810 |  |  | $ | 16,987 |
The Company recorded allowance for doubtful accounts of less than $0.1 million for the three months and six months ended September 30, 2020 and no allowance for the three or six months ended September 30, 2019 . The allowances are based on evaluation of customer accounts that are past due.

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- Definition The entire disclosure for accounts receivable. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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Namespace Prefix: | us-gaap_
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