Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2017

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Nonvested Restricted Stock Shares Activity [Table Text Block]

The following table contains summarized information about nonvested restricted stock outstanding during the six months ended June 30, 2017:

Restricted Stock	Common Shares		Weighted Average Grant Date Fair Value		Weighted Average Remaining Years to Vest
Nonvested at December 31, 2016	—		$	—
Granted	22,784		4.06
Vested	(22,784	)	3.66
Forfeited	—		—
Nonvested at June 30, 2017	—		$	—

Share-based Compensation, Stock Options, Activity [Table Text Block]

A summary of option activity under the 2011 Equity Incentive Plans for the year ended December 31, 2016 and the six months ended June 30, 2017, is presented below:

Options Outstanding	Common Shares		Weighted Average Exercise Price		Weighted Average Remaining Life (Years)
Outstanding at December 31, 2015	830,599		$	8.65	6.5
Granted	179,998		6.16
Exercised	—		—
Forfeited	(50,733	)	10.15
Outstanding at December 31, 2016	959,864		$	8.11	6.4
Granted	55,003		3.64
Exercised	—		—
Forfeited	(37,074	)	50.15
Outstanding at June 30, 2017	977,793		$	6.26	6.2
Exercisable at June 30, 2017	635,371		$	6.24	5.3

Stock options

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Share Activity [Table Text Block]

A summary of the nonvested stock option activity under the 2011 Equity Incentive Plans for the year ended December 31, 2016 and the six months ended June 30, 2017, is presented below:

Nonvested Options	Common Shares		Weighted Average Grant Date Fair Value		Weighted Average Remaining Years to Vest
Nonvested at December 31, 2015	461,926		$	3.84	2.8
Granted	179,998		2.88
Vested	(187,181	)	4.00
Forfeited	(40,437	)	3.76
Nonvested at December 31, 2016	414,306		$	3.60	2.6
Granted	55,003		1.60
Vested	(109,024	)	3.60
Forfeited	(17,863	)	3.12
Nonvested at June 30, 2017	342,422		$	3.04	2.5