8. Stock-Based Compensation (Details-Stock-based compensation) - USD ($) |
3 Months Ended | |
|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Total stock-based compensation | $ 292,000 | $ 347,000 |
| Cost of revenues [Member] | ||
| Total stock-based compensation | 17,000 | 35,000 |
| Research and development [Member] | ||
| Total stock-based compensation | 22,000 | 32,000 |
| Selling, general and administrative [Member] | ||
| Total stock-based compensation | $ 253,000 | $ 280,000 |
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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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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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- Details
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