Consolidated Statements of Changes in Stockholders' Equity (USD $)	Preferred Stock	Common Stock	Accumulated Deficit	Total
Beginning Balance, Amount at Dec. 31, 2011	$ 800,250	$ 23,239,976	$ (12,311,970)	$ 11,728,256
Beginning Balance, Shares at Dec. 31, 2011		19,469,317
Cumulative preferred dividends			(99,271)	(99,271)
Amortization of value of employee stock options		107,882		107,882
Net income			624,143	624,143
Exercise of employee stock options, Amount		18,200		18,200
Exercise of employee stock options, Shares		47,272
Ending Balance, Amount at Dec. 31, 2012	800,250	23,366,058	(11,787,098)	12,379,210
Ending Balance, Shares at Dec. 31, 2012		19,516,589
Cumulative preferred dividends			(99,000)	(99,000)
Amortization of value of employee stock options		117,118		117,118
Net income			91,097	91,097
Redeemed preferred stock	(800,250)			(800,250)
Exercise of employee stock options, Amount		39,975		39,975
Exercise of employee stock options, Shares		68,500
Issurance cost of preferred stock		(24,750)		(24,750)
Ending Balance, Amount at Dec. 31, 2013		23,498,401	(11,795,001)	11,703,400
Ending Balance, Shares at Dec. 31, 2013		19,585,089
Amortization of value of employee stock options		48,815		48,815
Net income			1,590,196	1,590,196
Exercise of employee stock options, Amount		105,230		105,230
Exercise of employee stock options, Shares		115,000
Cashless exercise of employee stock options		214,998
Stock issued in exchange for payables, amount		318,208		318,208
Stock issued in exchange for payables, shares		180,000
Ending Balance, Amount at Dec. 31, 2014		$ 23,970,654	$ (10,204,805)	$ 13,765,849
Ending Balance, Shares at Dec. 31, 2014		20,095,087