Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Summary of Warrant Activity

The following is a summary of warrant activity for the three and six months ended June 30, 2016:

	Number of					Weighted
	Shares Issuable			Weighted Avg.		Remaining
	Under Warrants			Exercise Price		Life (Years)
Balance, December 31, 2015		1,723,674			10.95		3.98
Issued		319,392			5.58
Exercised		(133,148	)		4.94
Balance, March 31, 2016		1,909,918			10.35		3.88
Issued		613,380			5.52
Exercised		(63,345	)		4.94
Balance, June 30, 2016		2,459,953			9.30		3.94

Summary of Assumptions used to Determine Fair Value of Warrants

The fair value of the warrants granted was determined using the Black-Scholes option pricing model and the following assumptions for the three and six months ended June 30, 2016 and 2015:

	Three Months Ended						Six Months Ended
	June 30, 2016			June 30, 2015			June 30, 2016			June 30, 2015
Expected term		2.5 Years			2.5 Years			2.5 Years			2.5 Years
Expected dividend		0	%		0	%		0	%		0	%
Volatility		76% to 83	%		31% to 32	%		65% to 83	%		27	%
Risk-free interest rate		0.84% to 1.08	%		1.00% to 1.07	%		0.81% to 1.31	%		0.85% to 1.37	%