CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Preferred Stock	Common Shares Issued	Additional Paid-In Capital	Accumulated Deficit	Accumulated Comprehensive Income (Loss)	Treasury Stock
Balance at Mar. 31, 2011	$ 58,091	$ 3,310	$ 529	$ 98,785	$ (21,055)	$ 746	$ (24,224)
Balance (in shares) at Mar. 31, 2011			52,965,797
Net income	10,637				10,637
Accumulated other comprehensive income:
Realized gain on sale of available-for-sale securities	(828)					(828)
Balance at Mar. 31, 2012	67,900	3,310	529	98,785	(10,418)	(82)	(24,224)
Balance (in shares) at Mar. 31, 2012			52,965,797
Net income	5,999				5,999
Accumulated other comprehensive income:
Foreign currency translation adjustment	82					82
Balance at Mar. 31, 2013	$ 73,981	$ 3,310	$ 529	$ 98,785	$ (4,419)		$ (24,224)
Balance (in shares) at Mar. 31, 2013			52,965,797