Consolidated Statement of Stockholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance, March 31, 2013 at Mar. 31, 2013	$ 90,000	$ 54,491,000	$ 32,636,000	$ 329,000	$ (53,398,000)	$ 34,148,000
Balance, March 31, 2013 (in Shares) at Mar. 31, 2013	8,958,181				4,579,563
Shares issued in connection with the exercise of employee stock options		525,000				525,000
Shares issued in connection with the exercise of employee stock options (in Shares)	81,502
Withholding tax on net share settlement of exercise of employee stock options		(772,000)				(772,000)
Income tax benefit on stock option exercises		1,557,000				1,557,000
Share-based compensation		147,000				147,000
Unrealized loss on available for sale securities, net of deferred income tax benefit of ($50)				(77,000)		(77,000)
Net income			3,354,000			3,354,000
Balance, June 30, 2013 at Jun. 30, 2013	$ 90,000	$ 55,948,000	$ 35,990,000	$ 252,000	$ (53,398,000)	$ 38,882,000
Balance, June 30, 2013 (in Shares) at Jun. 30, 2013	9,039,683				4,579,563