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 (in shares) at Dec. 31, 2014	10,245,534
BALANCE at Dec. 31, 2014	$ 26,984	$ 6,013,325	$ (2,894,068)	$ 46,664,829	$ (688,058)	$ 49,123,012
Shares issued – stock option exercise (in shares)	2,000					2,000
Shares issued – stock option exercise	$ 5	9,915				$ 9,920
Stock-based compensation (in shares)	34,484
Stock-based compensation	$ 83	$ 28,981				29,064
Net income				$ 1,444,407		1,444,407
Translation adjustment					$ (644,456)	(644,456)
BALANCE (in shares) at Mar. 31, 2015	10,282,018
BALANCE at Mar. 31, 2015	$ 27,072	$ 6,052,221	$ (2,894,068)	$ 48,109,236	(1,332,514)	49,961,947
BALANCE (in shares) at Dec. 31, 2015	9,753,293
BALANCE at Dec. 31, 2015	$ 27,062	6,168,489	$ (6,602,930)	$ 53,067,234	$ (1,687,679)	50,972,176
Stock-based compensation (in shares)	33,685
Stock-based compensation	$ 80	$ 43,682				43,762
Net income				$ 1,520,997		1,520,997
Translation adjustment					$ 637,515	637,515
BALANCE (in shares) at Mar. 31, 2016	9,382,555
BALANCE at Mar. 31, 2016	$ 27,142	$ 6,212,171	$ (9,473,670)	$ 54,588,231	$ (1,050,164)	50,303,710
Purchase of treasury stock (in shares)	(404,423)
Purchase of treasury stock			$ (2,870,740)			$ (2,870,740)