CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2014	$ 53,949,001	$ 11,628,503	$ (19,559,331)	$ 46,018,173
Balance (in shares) at Dec. 31, 2014	20,382,333
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 0	1,770,897	0	1,770,897
Issuance of restricted stock	$ 0	0	0	0
Issuance of restricted stock (in shares)	487,500
Stock option exercises	$ 291,246	(118,480)	0	172,766
Stock option exercises (in shares)	241,752
Net loss	$ 0	0	(9,573,059)	(9,573,059)
Balance at Dec. 31, 2015	$ 54,240,247	13,280,920	(29,132,390)	38,388,777
Balance (in shares) at Dec. 31, 2015	21,111,585
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 0	1,003,305	0	1,003,305
Issuance of restricted stock	$ 0	0	0	0
Issuance of restricted stock (in shares)	255,800
Stock option exercises	$ 3,569	(1,269)	0	2,300
Stock option exercises (in shares)	2,500
Net loss	$ 0	0	(4,525,761)	(4,525,761)
Balance at Dec. 31, 2016	$ 54,243,816	$ 14,282,956	$ (33,658,151)	$ 34,868,621
Balance (in shares) at Dec. 31, 2016	21,369,885