Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]

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

A summary of all current and expired plans as of March 31, 2015 and changes during the period then ended are presented in the following table:

Options

	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding as of December 31, 2014	785,220	$	8.03		5.50	$	46
Granted	—		—		—		—
Exercised	—		—		—		—
Forfeited or expired	(14,431)		5.98		—		—
Outstanding as of March 31, 2015	770,789		8.07		5.20		30
Exercisable as of March 31, 2015	733,518	$	8.11		5.06	$	30

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Restricted Stock

	Number of shares		Weighted Average Fair Value at Grant Date		Weighted Average Remaining Contractual Life (in years)
Unvested balance as of December 31, 2014		7,500	$	4.84		1.41
Granted		—		—		—
Vested		—		—		—
Unvested balance as of March 31, 2015		7,500	$	4.84		1.16

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The following table summarizes the range of assumptions utilized in the Black-Scholes-Merton option-pricing model for the valuation of stock options granted during the three-month periods ended March 31, 2015 and 2014.

	Three-Month Periods Ended March 31,
	2015					2014
Range of values:	Low		High			Low			High
Expected volatility	78.74	%		80.91	%		73.03	%		74.03	%
Expected dividends	—			—			—			—
Expected term (in years)	4.78			8.11			3.73			9.11
Risk free rate	1.13	%		1.80	%		1.16	%		2.52	%