Income Taxes (Detail Textuals) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Schedule Of Income Taxes [Line Items]
Revaluation of net deferred tax asset	$ 3.1
Decrease in effective tax rate	20.50%	134.70%
Undistributed earnings	$ 3.6
U.S. federal
Schedule Of Income Taxes [Line Items]
Income tax net operating loss carryforwards	1.9
State and Municipal
Schedule Of Income Taxes [Line Items]
Income tax net operating loss carryforwards	$ 0.4
Operating loss carryforwards, earliest expiration date	Mar. 31, 2020