Consolidated Balance Sheets (Parenthetical) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Mar. 31, 2018	Mar. 31, 2019
Debt Instrument, Unamortized Discount, Current	$ 841,000		$ 1,436,000
Unamortized debt issuance expense	$ 813,000		$ 3,352,000
Preferred stock, shares authorized (shares)	15,000,000		15,000,000
Common stock, par value (in dollars per share)	$ 0.001
Treasury stock (in shares)	1,313,836		1,313,836
Series A preferred stock
Preferred stock, shares authorized (shares)	20		20
Preferred stock, dividend rate (percentage)	10.00%	10.00%
Preferred stock, par value (in dollars per share)	$ 0.001		$ 0.001
Preferred stock, shares issued (shares)	7		7
Preferred stock, shares outstanding (shares)	7		7
Preferred stock, liquidation preference	$ 3,648		$ 3,648
Class A common stock
Common stock, shares authorized (shares)	60,000,000		60,000,000
Common stock, par value (in dollars per share)	$ 0.001		$ 0.001
Common stock, shares issued (shares)	37,037,823		36,992,433
Common stock, shares outstanding (shares)	35,723,987		35,678,597
Secured Debt [Member]
Unamortized debt issuance expense	$ 1,321,000		$ 1,495,000