Consolidated Statements of Stockholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
BALANCE, at Dec. 31, 2011	$ 26,760	$ 5,736,543	$ (2,894,068)	$ 31,181,936	$ 382,630	$ 34,433,801
BALANCE, (in Shares) at Dec. 31, 2011	10,156,422
Stock-based compensation		10,000				10,000
Cash dividend				(2,536,131)		(2,536,131)
Net income				3,113,744		3,113,744
Translation adjustment					(100,367)	(100,367)
BALANCE, at Jun. 30, 2012	26,760	5,746,543	(2,894,068)	31,759,549	282,263	34,921,047
BALANCE, (in Shares) at Jun. 30, 2012	10,156,422
BALANCE, at Dec. 31, 2012	26,775	5,767,508	(2,894,068)	34,241,875	378,927	37,521,017
BALANCE, (in Shares) at Dec. 31, 2012	10,162,442					11,156,065
Shares issued – stock options exercised	22	(22)
Shares issued – stock options exercised (in Shares)	9,291
Stock-based compensation		11,686				11,686
Net income				3,215,674		3,215,674
Translation adjustment					(361,493)	(361,493)
BALANCE, at Jun. 30, 2013	$ 26,797	$ 5,779,172	$ (2,894,068)	$ 37,457,549	$ 17,434	$ 40,386,884
BALANCE, (in Shares) at Jun. 30, 2013	10,171,733					11,165,356