Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Stock Warrants [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Balance at Dec. 31, 2011	$ 22,836,152	$ 63,227	$ 0	$ 69,326,705	$ 0	$ (46,553,780)
Balance (in shares) at Dec. 31, 2011		63,226,857
Issuance of common stock - options exercises	51,203	525	0	50,074		604
Issuance of common stock - options exercises (in shares)		525,000
Issuance of common stock - restricted	87,143	0	0	87,143	0	0
Stock compensation expense	130,468	0	0	130,468	0	0
Foreign currency translation - gain (loss)	0
Net loss	832,301	0	0	0	0	832,301
Balance at Dec. 31, 2012	23,937,267	63,752	0	69,594,390	0	(45,720,875)
Balance (in shares) at Dec. 31, 2012		63,751,857
Issuance of common stock - options exercises	46,221	155	0	46,066
Issuance of common stock - options exercises (in shares)		155,500
Issuance of common stock - restricted	87,143	0	0	87,143	0	0
Stock compensation expense	139,892	0	0	139,892	0	0
Foreign currency translation - gain (loss)	0
Net loss	(1,694,785)	0	0	0	0	(1,694,785)
Balance at Dec. 31, 2013	22,515,738	63,907	0	69,867,491	0	(47,415,660)
Balance (in shares) at Dec. 31, 2013		63,907,357
Issuance of common stock - options exercises	462,218	760	0	461,458	0	0
Issuance of common stock - options exercises (in shares)		760,399
Issuance of common stock - restricted	87,143	0	0	87,143	0	0
Issuance of common stock - public offering	22,024,760	16,990		22,007,770	0	0
Issuance of common stock - public offering (in shares)		16,989,007
Stock compensation expense	237,138	0	0	237,138	0	0
Foreign currency translation - gain (loss)	(147,515)				(147,515)
Net loss	(8,400,626)	0	0	0		(8,400,626)
Balance at Dec. 31, 2014	$ 36,778,856	$ 81,657	$ 0	$ 92,661,000	$ (147,515)	$ 55,816,286
Balance (in shares) at Dec. 31, 2014		81,656,763