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Stock-Based Compensation - Summary of Stock Options Activity (Details)
9 Months Ended
Dec. 31, 2018
$ / shares
shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Number of Shares Outstanding, Beginning Balance | shares 148,600
Number of Shares Outstanding, Granted | shares 40,000
Number of Shares Outstanding, Exercised | shares (2,900)
Number of Shares Outstanding, Forfeited or Expired | shares
Number of Shares Outstanding, Ending Balance | shares 185,700
Number of Shares Outstanding, Vested | shares 145,700
Number of Shares Outstanding, Exercisable | shares 145,700
Weighted Average Exercise Price, Beginning Balance | $ / shares $ 6.54
Weighted Average Exercise Price, Granted | $ / shares 4.84
Weighted Average Exercise Price, Exercised | $ / shares 6.29
Weighted Average Exercise Price, Forfeited or Expired | $ / shares
Weighted Average Exercise Price, Ending Balance | $ / shares 6.18
Weighted Average Exercise Price, Vested | $ / shares 6.55
Weighted Average Exercise Price, Exercisable | $ / shares $ 6.55
Weighted Average Remaining Contract Life in Years, Beginning Balance 4 years 4 months 2 days
Weighted Average Remaining Contract Life in Years, Ending Balance 4 years 11 months 4 days
Weighted Average Remaining Contract Life in Years, Vested 3 years 7 months 13 days
Weighted Average Remaining Contract Life in Years, Exercisable 3 years 7 months 13 days