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Stock Acquisition Rights, Stock Options and Warrants (Summary of Performance Stock Options) (Details) - Performance Stock Options [Member]
9 Months Ended
Dec. 31, 2019
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding | shares 179,945
Options, Granted | shares
Options, Exercised | shares
Options, Forfeited/Expired | shares
Options Outstanding | shares 179,945
Weighted Average Exercise Price, Options outstanding | $ / shares $ 25.83
Weighted Average Exercise Price, Granted | $ / shares
Weighted Average Exercise Price, Exercised | $ / shares
Weighted Average Exercise Price, forfeited/expired | $ / shares
Weighted Average Exercise Price, Options outstanding | $ / shares $ 25.83