Consolidated Statements of Changes in Stockholders' Equity (USD $)	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Total
Beginning Balance, Amount at Dec. 31, 2013	$ 275,461	$ 146,569,758	$ (126,267,945)	$ 20,577,274
Beginning Balance, Shares at Dec. 31, 2013	27,546,058
Shares issued for services, Shares	115,617
Shares issued for services, Amount	1,156	152,314		153,470
Shares subscribed under the at-the-market program		49,847		49,847
Option expense		591,622		591,622
Net loss			(7,818,833)	(7,818,833)
Ending Balance, Amount at Jun. 30, 2014	$ 276,617	$ 147,363,541	$ (134,086,778)	$ 13,553,380
Ending Balance, Shares at Jun. 30, 2014	27,661,675