CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Net sales	$ 7,147,167	$ 8,381,319	$ 16,323,607	$ 14,534,821
Cost of sales	5,231,710	5,795,971	11,981,227	9,633,682
Gross profit	1,915,457	2,585,348	4,342,380	4,901,139
Selling, general and administrative expenses	1,953,978	1,121,411	3,686,649	2,139,355
Income (loss) from operations	(38,521)	1,463,937	655,731	2,761,784
Other income (expenses):
Other income		2,875		62,875
Interest expense	(78,531)	(110,450)	(137,221)	(218,016)
Interest income	8,460	3,869	10,406	6,602
Finance costs		(2,589)		(5,179)
Total other income (expense), net	(70,071)	(106,295)	(126,815)	(153,718)
Income (loss) before income taxes	(108,592)	1,357,642	528,916	2,608,066
Income tax expense (benefit)	(20,494)	502,014	235,553	933,116
Net income (loss)	$ (88,098)	$ 855,628	$ 293,363	$ 1,674,950
Net income (loss) per share of common stock (basic) (in dollars per share)	$ (0.01)	$ 0.06	$ 0.02	$ 0.12
Net income (loss) per share (fully diluted) (in dollars per share)	$ (0.01)	$ 0.04	$ 0.01	$ 0.08
Weighted average number of shares outstanding (basic) (in shares)	16,546,279	14,231,417	16,049,144	14,231,133
Weighted average number of shares outstanding (fully diluted) (in shares)	16,546,279	20,568,037	24,143,956	20,757,412