Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
BALANCE at Dec. 31, 2013	$ 3,487	$ 101,008,381	$ (85,655,564)	$ 15,356,304
BALANCE, shares at Dec. 31, 2013	3,486,557
Stock-based compensation expense (employees and directors)	$ 2	188,638		188,640
Stock-based compensation expense (employees and directors) ,shares	2,544
Issuance of common stock, net of costs	$ 1,445	$ 5,245,878		5,247,323
Issuance of common stock, net of costs, shares	1,445,500
Net loss			$ (7,644,230)	(7,644,230)
BALANCE at Dec. 31, 2014	$ 4,934	$ 106,442,897	$ (93,299,794)	13,148,037
BALANCE, shares at Dec. 31, 2014	4,934,601
Stock-based compensation expense (employees and directors)		878,112		878,112
Stock-based compensation expense (employees and directors) ,shares
Issuance of common stock, net of costs	$ 4,857	7,625,900		7,630,757
Issuance of common stock, net of costs, shares	4,857,143
Exercise of stock options	$ 1	3,456		$ 3,457
Exercise of stock options,shares	313
Vesting of restricted stock	$ 87	$ (87)
Vesting of restricted stock,shares	86,849
Net loss			$ (5,333,951)	$ (5,333,951)
BALANCE at Dec. 31, 2015	$ 9,879	$ 114,950,278	$ (98,633,745)	$ 16,326,412
BALANCE, shares at Dec. 31, 2015	9,878,906