Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Common Shares [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2008	$ 45,707	$ 3,502,996	$ 9,193,884	$ (109,469)	$ 12,633,118
Balance, shares at Dec. 31, 2008	4,570,632
Net income			2,228,601		2,228,601
Cumulative translation adjustment				36,230	36,230
Total comprehensive income					2,264,831
Stock based compensation		132,663			132,663
Balance at Dec. 31, 2009	45,707	3,635,659	11,422,485	(73,239)	15,030,612
Balance, shares at Dec. 31, 2009	4,570,632
Net income			2,987,392		2,987,392
Cumulative translation adjustment				24,547	24,547
Total comprehensive income					3,011,939
Stock based compensation		81,175			81,175
Stock options exercised	50	15,350			15,400
Stock options exercised, shares	5,000
Balance at Dec. 31, 2010	45,757	3,732,184	14,409,877	(48,692)	18,139,126
Balance, shares at Dec. 31, 2010	4,575,632
Net income			1,520,674		1,520,674
Cumulative translation adjustment				(127,817)	(127,817)
Total comprehensive income					1,392,857
Stock based compensation		103,216			103,216
Stock options exercised	1,290	338,428			339,718
Stock options exercised, shares	129,000
Balance at Dec. 31, 2011	$ 47,047	$ 4,173,828	$ 15,930,551	$ (176,509)	$ 19,974,917
Balance, shares at Dec. 31, 2011	4,704,632