Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
BALANCE, beginning (in shares) at Dec. 31, 2013	10,198,733
BALANCE, beginning at Dec. 31, 2013	$ 26,862	$ 5,892,907	$ (2,894,068)	$ 41,507,592	$ 88,249	$ 44,621,542
Stock-based compensation (in shares)	34,601
Stock-based compensation	$ 83	28,982				29,065
Net income				3,619,897		3,619,897
Dividend payable				(2,549,684)		(2,549,684)
Translation adjustment					90,615	90,615
BALANCE, ending (in shares) at Jun. 30, 2014	10,233,334
BALANCE, ending at Jun. 30, 2014	$ 26,945	5,921,889	(2,894,068)	42,577,805	178,864	45,811,435
BALANCE, beginning (in shares) at Dec. 31, 2014	10,245,534
BALANCE, beginning at Dec. 31, 2014	$ 26,984	6,013,325	(2,894,068)	46,664,829	(688,058)	49,123,012
Stock-based compensation (in shares)	34,484
Stock-based compensation	$ 73	67,744				67,817
Net income				2,952,303		2,952,303
Translation adjustment					(166,567)	(166,567)
BALANCE, ending (in shares) at Jun. 30, 2015	10,282,018
BALANCE, ending at Jun. 30, 2015	$ 27,062	6,090,984	$ (2,894,068)	$ 49,617,132	$ (854,625)	$ 51,986,485
Shares issued – stock option exercise (in shares)	2,000					2,000
Shares issued – stock option exercise	$ 5	$ 9,915				$ 9,920