Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Stock-based Compensation Tables

Schedule of Stock Option Activity

The following is a summary of the stock option activity for the nine months ended September 30, 2017:

	Shares			Weighted Average Exercise Price
Outstanding, December 31, 2016		1,136,753		$	3.93
Granted		1,731,500		$	0.80
Forfeited		(194,704	)	$	2.12
Outstanding, September 30, 2017		2,673,549		$	2.04

Schedule of Stock Option Valuation Assumptions

The fair value of each stock option was estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions for stock options granted during the nine months ended September 30, 2017:

Dividend yield	0.0	%
Expected volatility	76.96	%
Risk-free interest rate	2.16	%
Expected lives (years)	6.25

Schedule of Options Outstanding, Vested and Exercisable

The following table summarizes information about stock options outstanding at September 30, 2017:

Options Outstanding			Options Vested and Exercisable
Balance as of 9/30/2017	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price	Balance as of 9/30/2017	Weighted Average Remaining Contractual Life (Years)	Weighted Average Exercise Price
2,673,549	8.5	$2.04	953,120	7.0	$3.87