NOTES PAYABLE - NET OF ORIGINAL ISSUE DISCOUNT (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2013 2010 Term Loans, net of discount	Mar. 31, 2012 2010 Term Loans, net of discount	May 31, 2010 2010 Term Loans, net of discount	Mar. 31, 2013 2013 Term Loans, net of discount	Feb. 28, 2013 2013 Term Loans, net of discount	Mar. 31, 2013 2013 Prospect Term Loan Agreement	Feb. 28, 2013 2013 Prospect Term Loan Agreement	Mar. 31, 2013 2010 Note, net of discount	Mar. 31, 2012 2010 Note, net of discount
Debt Instrument [Line Items]
Debt amount, at issuance	$ 172,500,000	$ 172,500,000	$ 172,500,000	$ 172,500,000	$ 125,087,000	$ 130,000,000	$ 70,000,000	$ 70,000,000	$ 75,000,000	$ 75,000,000
PIK Interest							151,000		24,341,000	17,420,000
Payments to date		(172,500,000)	(53,777,000)		(2,275,000)				(99,341,000)
Discount on debt instrument		0	(1,173,000)		(355,000)				0	(5,066,000)
Notes payable, excluding debt discount		0	117,550,000		122,457,000		70,151,000		0	87,354,000
Less current portion		0	(24,151,000)		(26,250,000)		0		0	0
Total long term portion		$ 0	$ 93,399,000		$ 96,207,000		$ 70,151,000		$ 0	$ 87,354,000