Quarterly report pursuant to Section 13 or 15(d)

7. Stock-Based Compensation (Details Narrative)

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7. Stock-Based Compensation (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Stock Options [Member]        
Weighted average grant date fair values of options granted $ 1.96 $ 5.58 $ 2.20 $ 6.01
Unrecognized compensation costs - Options $ 1,450,000 $ 2,999,000 $ 1,450,000 $ 2,999,000
Weighted average amortization period     1 year 6 months 22 days 2 years 5 months 5 days
Aggregate intrinsic value per share     $ 1.46  
Restricted Stock [Member]        
Unrecognized compensation costs - Restricted Stock Awards $ 111,000 $ 239,000 $ 111,000 $ 239,000
Weighted average amortization period     1 year 6 months 11 days 1 year 8 months 8 days