Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

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

Summary of Stock Options Outstanding

The following table summarizes stock options outstanding and changes during the years ended December 31, 2017 and 2016:

	December 31, 2017					December 31, 2016
	Number of  Stock  Options			Weighted  Average  Exercise  Price		Number of  Stock  Options			Weighted  Average  Exercise  Price
Stock options outstanding at beginning of period		110,828		$	18.24		326,424		$	24.89
Granted		189,164			1.40		-			-
Expired		(13,818	)		50.88		(210,872	)		19.13
Canceled or forfeited		-			-		(4,724	)		438.89
Stock options outstanding at end of period		286,174		$	5.53		110,828		$	18.24
Stock options exercisable at end of period		97,010		$	13.59		110,723		$	18.22

Summary of Stock Options Outstanding and Exercisable by Stock Option Plan

The following table summarizes stock options outstanding and exercisable by stock option plan at December 31, 2017:

	Outstanding Stock Options				Exercisable Stock Options
Stock Option Plan	Number of  Stock Options  Outstanding		Weighted  Average  Exercise Price		Number of  Stock Options  Exercisable		Weighted  Average  Exercise Price
2004 Plan		4,792	$	35.14		4,792	$	35.14
2004 Directors’ Plan		973		317.14		973		317.14
2013 Plan		189,581		1.48		417		35.88
Replacement Stock Options		90,828		9.09		90,828		9.09
		286,174	$	5.53		97,010	$	13.59

Summary of Status of Non-Vested Restricted Shares

The following table summarizes RSU activity for the years ending December 31, 2017 and 2016:

	December 31, 2017					December 31, 2016
	Number of RSUs			Weighted- Average  Grant Date  Fair Value		Number of  RSUs			Weighted- Average  Grant Date  Fair Value
Unvested RSUs at beginning of period		8,649		$	43.71		32,699		$	34.25
Granted		304,064			1.40		-			-
Forfeited		(34,845	)		5.72		(7,627	)		34.61
Vested		(98,971	)		2.50		(16,423	)		29.09
Unvested RSUs at end of period		178,897		$	1.40		8,649		$	43.71

Summary of Restricted Stock Awards

The following table summarizes RSA activity during the years ended December 31, 2017 and 2016:

	December 31, 2017				December 31, 2016
	Number of  RSAs		Weighted- Average  Grant Date  Fair Value		Number of  RSAs			Weighted- Average  Grant Date  Fair Value
Unvested RSAs at beginning of period		-	$	-		1,366		$	40.01
Forfeited		-		-		(410	)		44.84
Vested		-		-		(956	)		37.94
Unvested RSAs at end of period		-	$	-		-		$	-