5. Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Option Activity

	Number of Shares			Weighted Avg. Exercise Price		Weighted Average Remaining Contract Term (# years)		Intrinsic Value
Outstanding at December 31, 2015		417,404		$	18.04
Granted		—			—
Exercised		—			—
Forfeited and canceled		(22,063	)		7.79
Outstanding at March 31, 2016		395,341		$	18.61		7.4	$	—
Exercisable at March 31, 2016		261,469		$	21.81		6.9	$	—

Warrant Activity

	Number of Shares			Weighted Avg. Exercise Price		Weighted Average Remaining Contract Term (# years)		Intrinsic Value
Outstanding at December 31, 2015		3,662,954		$	6.30
Granted		—			—
Exercised		—			—
Forfeited and canceled		(51,823	)		83.52
Outstanding at March 31, 2016		3,611,131		$	5.19		1.96	$	—
Exercisable at March 31, 2016		3,611,131		$	5.19		1.96	$	—