Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) (USD $)	Total	Series A Preferred Stock [Member]	Series B Preferred Stock [Member]	Redeemable Convertible Preferred Stock [Member]	Common Voting Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2012	$ (54,384,496)	$ 29,063,167	$ 166,667	$ 29,229,834	$ 314		$ (54,384,810)
Beginning Balance, Shares at Dec. 31, 2012		980,391	928,995		314,419
Stock-based compensation	1,701,713					1,701,713
Allocation of fair value of investor right to Series B preferred stock			6,264,914	6,264,914
Issuance of Series B preferred stock, net of issuance costs and warrant liability			2,000,000	2,000,000
Issuance of Series B preferred stock, net of issuance costs and warrant liability,shares			387,686
President and CEO contributed services	46,388					46,388
Issuance of restricted stock awards	7,147				13	7,134
Issuance of restricted stock awards, Shares					12,946
Accretion of discounts and issuance costs on preferred stock	(822,550)	228,698	593,852	822,550		(822,550)
Beneficial conversion feature on convertible promissory note	170,000					170,000
Net income	13,060,472						13,060,472
Ending Balance at Dec. 31, 2013	(40,221,326)	29,291,865	9,025,433	38,317,298	327	1,102,685	(41,324,338)
Ending Balance, Shares at Dec. 31, 2013		980,391	1,316,681		327,365
Stock-based compensation	2,037,073					2,037,073
Accretion of discounts and issuance costs on preferred stock	(333,082)	78,037	255,045	333,082		(333,082)
Issuance of common stock, net of issuance costs	9,976,907				1,500	9,975,407
Issuance of common stock, net of issuance costs, Shares					1,500,000
Conversion of Preferred	38,650,380	(29,369,902)	(9,280,478)	(38,650,380)	3,643	38,646,737
Conversion of Preferred, Shares	3,642,799	(980,391)	(1,316,681)		3,642,799
Net exercise of warrants	1,191,365				74	1,191,291
Net exercise of warrants, Shares					74,001
Beneficial conversion feature on convertible promissory note	170,000				21	169,979
Conversion feature on convertible promissory note, Shares					21,250
Net income	(5,187,259)						(5,187,259)
Ending Balance at Dec. 31, 2014	$ 6,284,058				$ 5,565	$ 52,790,090	$ (46,511,597)
Ending Balance, Shares at Dec. 31, 2014					5,565,415