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Share-Based Payments (Detail Textuals 1) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from exercise of option	$ 16,000	$ 458,000
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock options exercised	12,000	91,000
Number of stock options forfeited	67,000	91,000
Unrecognized compensation cost	$ 10,000
Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of stock options exercised	$ 0.77	$ 3.50
Exercise price of stock options forfeited	10.87	8.21
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price of stock options exercised	4.18	8.44
Exercise price of stock options forfeited	$ 14.36	$ 14.36
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 321,000
Number of shares awarded	28,000
Number of share granted employees maximum account reached	28,000
Number of performance shares forfeited	25,000
Weighted-average period expected to be recognized	1 year 11 months 15 days

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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