Condensed Statement of Operations and Comprehensive Income (Loss) (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 2,817,599	$ 3,977,500
Cost of goods sold	2,113,631	2,988,538
Gross profit	703,968	988,962
Operating expenses:
Selling	422,665	526,186
General and administrative	339,534	314,652
Research and development	258,512	260,410
Total	1,020,711	1,101,248
Operating profit (loss)	(316,743)	(112,286)
Other income (expense):
Interest income	9	40
Other, net	(16,328)	(781)
Total other income (expense), net	(16,319)	(741)
Income (loss) before income taxes	(333,062)	(113,027)
Income taxes (benefit)	512	1,240
Net income (loss)	(333,574)	(114,267)
Other comprehensive income (loss):
Foreign currency translation adjustments	(9,955)	6,546
Unrealized gain (loss) for the period	12,800	8,120
Total comprehensive income (loss)	$ (330,729)	$ (99,601)
Basic and diluted net income (loss) per share	$ (0.05)	$ (0.02)
Weighted average common and common equivalent shares:
Basic and diluted	6,973,704	6,973,704