Consolidated Statements of Comprehensive Loss (Parenthetical) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Statement of Other Comprehensive Income [Abstract]
Deferred taxes, available for sale securities	$ (30,000)	$ (101,000)	$ 19,000
Deferred tax benefit, recognized gains on available for sale securities included in net loss	$ 83,000	$ 31,000	$ 5,000