Earnings Per Share - Anti-dilutive Shares (Details) - shares	1 Months Ended				3 Months Ended
	May. 31, 2014	Jan. 31, 2014	Feb. 28, 2013	May. 31, 2011	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share
Number of dilutive potential common shares					21,526,612	18,361,522
Stock options
Earnings Per Share
Stock options granted					15,000	210,000
Warrants issued in May, 2011
Earnings Per Share
Number of warrants issued (in shares)				7,128,563
Warrants outstanding (in shares)				22,995,365
Number of warrants unexercised (in shares)					74,188	219,342
Warrants issued in February, 2013
Earnings Per Share
Number of warrants issued (in shares)			23,637,500
Number of warrants unexercised (in shares)					100	100
Warrants issued in January, 2014
Earnings Per Share
Number of warrants issued (in shares)		4,000,000
Number of warrants unexercised (in shares)					4,000,000	4,000,000
Series C redeemable convertible preferred stock
Earnings Per Share
Stock options granted	10,431
Number of preferred shares that had been converted to common stock					5,200
Stock options
Earnings Per Share
Number of dilutive potential common shares					11,693,286	8,191,928
Restricted stock
Earnings Per Share
Number of dilutive potential common shares					204,444	395,558
Warrants
Earnings Per Share
Number of dilutive potential common shares					4,074,288	4,219,442
Preferred stock
Earnings Per Share
Number of dilutive potential common shares					5,554,594	5,554,594