CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Cumulative Transaction Adjustment	Treasury Stock	Total
Balance at Mar. 31, 2011	$ 8,590	$ 14,302,693	$ (9,993,989)		$ (27,511)	$ 4,289,783
Balance (in shares) at Mar. 31, 2011	8,590,315
Exercise of stock options (in shares)
Issuance of restricted stock	251	(251)
Issuance of restricted stock (in shares)	250,500
Forfeiture of restricted stock	(20)	20
Forfeiture of restricted stock (in shares)	(20,000)
Compensation cost recognized in connection with vested restricted stock		266,580				266,580
Compensation cost recognized in connection with stock options		177,696				177,696
Purchase of treasury stock					(13,599)	(13,599)
Accretion on redeemable preferred stock			(566,262)			(566,262)
Net income			5,399,410			5,399,410
Balance at Mar. 31, 2012	8,821	14,746,738	(5,160,841)		(41,110)	9,553,608
Balance (in shares) at Mar. 31, 2012	8,820,815					8,765,827
Exercise of stock options	144	61,964				62,108
Exercise of stock options (in shares)	144,437					(144,437)
Issuance of restricted stock	160	(160)
Issuance of restricted stock (in shares)	160,000
Forfeiture of restricted stock	(58)	58
Forfeiture of restricted stock (in shares)	(58,500)
Compensation cost recognized in connection with vested restricted stock		280,009				280,009
Compensation cost recognized in connection with stock options		162,106				162,106
Purchase of treasury stock					(460,596)	(460,596)
Accretion on redeemable preferred stock			(563,535)			(563,535)
Exchange rate change				(71,770)		(71,770)
Net income			1,214,914			1,214,914
Balance at Mar. 31, 2013	$ 9,067	$ 15,250,715	$ (4,509,462)	$ (71,770)	$ (501,706)	$ 10,176,844
Balance (in shares) at Mar. 31, 2013	9,066,752					8,641,448