CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Balance at Mar. 31, 2012	$ 38,152	$ 99	$ (6,831)	$ 96,019	$ (51,061)	$ (74)
Balance, shares at Mar. 31, 2012		9,916,855	(426,704)
Net income	4,076				4,076
Issuance of stock under stock option plan	159	1	(123)	281
Issuance of stock under stock option plan, shares	46,411	46,411	(14,739)
Issuance of stock under compensation and bonus plan	(18)		(18)
Issuance of stock under compensation and bonus plan, shares		23,934	(2,235)
Stock based compensation expense	813			813
Other comprehensive income (loss)	(110)					(110)
Balance at Mar. 31, 2013	43,072	100	(6,972)	97,113	(46,985)	(184)
Balance, shares at Mar. 31, 2013		9,987,200	(443,678)
Net income	5,641				5,641
Issuance of stock under stock option plan	912	1		911
Issuance of stock under stock option plan, shares	130,548	130,548
Issuance of stock under compensation and bonus plan			(11)	11
Issuance of stock under compensation and bonus plan, shares		31,196	(1,389)
Stock based compensation expense	672			672
Other comprehensive income (loss)	187					187
Balance at Mar. 31, 2014	50,484	101	(6,983)	98,707	(41,344)	3
Balance, shares at Mar. 31, 2014		10,148,944	(445,067)
Net income	14,907				14,907
Issuance of stock under stock option plan	662	1		661
Issuance of stock under stock option plan, shares	88,833	88,833
Issuance of stock under compensation and bonus plan	(15)		(58)	43
Issuance of stock under compensation and bonus plan, shares		27,930	(5,735)
Stock based compensation expense	1,043			1,043
Other comprehensive income (loss)	34					34
Balance at Mar. 31, 2015	$ 67,115	$ 102	$ (7,041)	$ 100,454	$ (26,437)	$ 37
Balance, shares at Mar. 31, 2015		10,148,944	(445,067)