Consolidated Statements of Stockholders’ Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2012	$ 15,581,870	$ 14,512	$ 30,074,801	$ (8,557,178)	$ (494,550)	$ (5,455,715)
Balance (in shares) at Dec. 31, 2012		14,511,816				1,892,176
Net income	776,590	0	0	776,590	0	0
Other comprehensive income (loss):
Foreign currency translation adjustment	7,157	0	0	0	7,157	0
Total comprehensive income	783,747
Common stock dividends paid, $0.03 per share	(378,576)	0	0	(378,576)	0	0
Stock-based compensation	41,745	0	41,745	0	0	0
Expired stock options & warrants; deferred tax effect	(31,618)	0	(31,618)	0	0	0
Contribution of treasury shares to ESOP	125,000	0	2,481	0	0	122,519
Contribution of treasury shares to ESOP (in shares)		0				(42,248)
Warrants exercised	13,668	8	13,660	0	0	0
Warrants exercised (in shares)		7,789				0
Common stock purchased for treasury	(5,364)	0	0	0	0	(5,364)
Common stock purchased for treasury (in shares)		0				4,045
Balance at Dec. 31, 2013	16,130,472	14,520	30,101,069	(8,159,164)	(487,393)	(5,338,560)
Balance (in shares) at Dec. 31, 2013		14,519,605				1,853,973
Net income	724,569	0	0	724,569	0	0
Other comprehensive income (loss):
Foreign currency translation adjustment	(78,445)	0	0	0	(78,445)	0
Total comprehensive income	646,124
Stock-based compensation	46,370	0	46,370	0	0	0
Expired stock options & warrants; deferred tax effect	(2,187)	0	(2,187)	0	0	0
Common stock issued to consultant	176,499	153	176,346	0	0	0
Common stock issued to consultant (in shares)		153,478				0
Balance at Dec. 31, 2014	$ 16,997,278	$ 14,673	$ 30,321,598	$ (7,434,595)	$ (565,838)	$ (5,338,560)
Balance (in shares) at Dec. 31, 2014		14,673,083				1,853,973