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Net Loss Per Share (Details) - USD ($)	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Reconciliation of basic and diluted net loss per share [Abstract]
Net loss	$ (6,151,000)	$ (5,495,000)
Basic shares (in shares)	18,822,178	18,895,847
Effect of potentially dilutive securities (in shares)	0	0
Diluted shares (in shares)	18,822,178	18,895,847
Net loss per share [Abstract]
Basic net loss per share (in dollars per share)	$ (0.33)	$ (0.29)
Diluted net loss per share (in dollars per share)	$ (0.33)	$ (0.29)
Options [Member]
Antidilutive Securities [Abstract]
Antidilutive shares excluded from computation of earnings per share (in shares)	1,520,811	1,380,598

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