Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Revenues	$ 20,563	$ 17,417	$ 67,830	$ 67,000
Cost and operating expenses:
Cost of revenues	15,863	16,533	56,461	53,843
Research and development	2,951	3,948	9,061	11,480
Selling, general and administrative	8,232	10,769	27,741	36,304
Restructuring and impairments	108	6,702	872	6,845
Amortization of acquisition related intangibles	84	81	247	242
Total cost and operating expenses	27,238	38,033	94,382	108,714
Operating loss	(6,675)	(20,616)	(26,552)	(41,714)
Change in fair value of derivatives and warrants	535	5,217	1,890	6,114
Interest expense, net	(1,634)	(4,553)	(7,250)	(10,191)
Other expense, net	(341)	(109)	(908)	(1,252)
Loss before income tax (benefit) expense	(8,115)	(20,061)	(32,820)	(47,043)
Income tax (benefit) expense	302	74	733	(683)
Net loss	$ (8,417)	$ (20,135)	$ (33,553)	$ (46,360)
Net loss per common share
Basic	$ (0.14)	$ (0.38)	$ (0.55)	$ (0.89)
Diluted	$ (0.14)	$ (0.38)	$ (0.55)	$ (0.89)
Weighted average number of common shares outstanding
Basic	62,309	52,792	60,578	51,966
Diluted	62,309	52,792	60,578	51,966