Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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

Summary of Stock Options Outstanding

The following table summarizes stock options outstanding and changes for the three-month periods ending March 31, 2018 and 2017:

	March 31, 2018					March 31, 2017
	Number of Stock Options			Weighted Average Exercise Price		Number of Stock Options			Weighted Average Exercise Price
Stock options outstanding at beginning of period		286,174		$	5.53		110,828		$	18.24
Expired		(5,595	)		12.48		(5,583	)		11.04
Stock options outstanding at end of period		280,579		$	5.39		105,245		$	18.62
Stock options exercisable at end of period		91,415		$	13.65		105,139		$	18.60

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 March 31, 2018:

	Outstanding Stock Options				Exercisable Stock Options
Stock Option Plan	Number of Outstanding Stock Options		Weighted Average Exercise Price		Number of Exercisable Stock Options		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		85,233		8.87		85,233		8.87
		280,579	$	5.39		91,415	$	13.65

Summary of Status of Non-vested Restricted Shares

The following table summarizes RSU activity for the three-month periods ended March 31, 2018 and 2017:

	March 31,					March 31,
	2018					2017
	Number of RSUs			Weighted-Average Grant Date Fair Value		Number of RSUs			Weighted-Average Grant Date Fair Value
Unvested RSUs at beginning of period		178,897		$	1.40		8,649		$	43.71
Forfeited		(9,429	)		1.40		-			-
Vested		-			-		(2,513	)		31.32
Unvested RSUs at end of period		169,468		$	1.40		6,136		$	48.78