Stock-Based Compensation (Details-Stock-based compensation) - USD ($) |
3 Months Ended | |
|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
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| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Total stock-based compensation | $ 59,000 | $ 63,000 |
| Cost of Sales [Member] | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Total stock-based compensation | 0 | (21,000) |
| Research and Development Expense [Member] | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Total stock-based compensation | 0 | (14,000) |
| Selling, General and Administrative Expenses [Member] | ||
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
| Total stock-based compensation | $ 59,000 | $ 98,000 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of noncash expense for share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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