Quarterly report pursuant to Section 13 or 15(d)

7. Stock-Based Compensation (Details-Stock-based compensation)

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7. Stock-Based Compensation (Details-Stock-based compensation) - USD ($)
3 Months Ended 9 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Total stock-based compensation $ 402,000 $ 665,000 $ 1,275,000 $ 1,530,000
Cost of revenues [Member]        
Total stock-based compensation 24,000 43,000 89,000 136,000
Research and development [Member]        
Total stock-based compensation 26,000 38,000 87,000 128,000
Selling, general and administrative [Member]        
Total stock-based compensation $ 352,000 $ 584,000 $ 1,099,000 $ 1,266,000