Consolidated Balance Sheets (Parenthetical) - USD ($)	9 Months Ended	12 Months Ended
	Dec. 31, 2017	Mar. 31, 2017
Unamortized debt issuance expense	$ 3,445,000	$ 5,340,000
Preferred stock, shares authorized (shares)	15,000,000	15,000,000
Secured Debt
Unamortized debt issuance expense	$ 2,289,000	$ 2,701,000
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	25,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares issued (shares)	36,138,785	11,841,983
Common stock, shares outstanding (shares)	34,824,949	11,841,983
Class B common stock
Common stock, shares authorized (shares)	0	1,241,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares issued (shares)	0	0
Common stock, shares outstanding (shares)	0	0