CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
BALANCE at Dec. 31, 2011	$ 19,755,396	$ 27,462	$ 100,699,156	$ (80,971,222)
BALANCE (in shares) at Dec. 31, 2011		27,462,504
Stock based compensation expense (employees and directors)	52,677	0	52,677	0
Stock based compensation expense (employees and directors) (in shares)		0
Exercise of stock options	130,448	262	130,186	0
Exercise of stock options (in shares)	(261,763)	261,763
Net loss	(2,260,086)	0	0	(2,260,086)
BALANCE at Dec. 31, 2012	17,678,435	27,724	100,882,019	(83,231,308)
BALANCE,(in shares) at Dec. 31, 2012		27,724,267
Stock based compensation expense (employees and directors)	19,053	0	19,053	0
Stock based compensation expense (employees and directors) (in shares)		0
Exercise of stock options	70,472	153	70,319	0
Exercise of stock options (in shares)	(153,200)	153,200
Issuance of common stock	12,600	20	12,580	0
Issuance of common stock (in shares)		20,000
Net loss	(2,424,256)	0	0	(2,424,256)
BALANCE at Dec. 31, 2013	$ 15,356,304	$ 27,897	$ 100,983,971	$ (85,655,564)
BALANCE,(in shares) at Dec. 31, 2013		27,897,467