Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

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

Schedule of Share-based Compensation, Stock Options, Activity

Stock option activity, including options granted under the 2018 Plan, the Prior Plan and the Non-Plan Grants, was as follows (in thousands, except number of shares and per share amounts):

	2018							2017
						Weighted							Weighted
				Weighted		Average Fair					Weighted		Average Fair
				Average Exercise		Value at Grant					Average Exercise		Value at Grant
	Shares			Price		Date		Shares			Price		Date
Outstanding at January 1		67,465		$	71.03	$	36.85		100,492		$	62.52	$	33.84
Granted		650,770			4.79		4.15		-			-		-
Cancelled or expired		(221,277	)		13.45		7.77		(33,027	)		45.13		30.74
Outstanding at December 31		496,958		$	9.90	$	6.62		67,465		$	71.03	$	36.85
Exercisable at December 31		66,188		$	46.88	$	25.92		32,750		$	128.39	$	62.23

Schedule of Share-based Compensation, Stock Options Assumptions

The estimated fair value of stock options granted is done using the Black-Scholes-Merton method applied to individual grants. Key assumptions used to estimate the fair value of stock awards are as follows:

	Year Ended
	December 31,
	2018			2017
Risk free interest rate		2.97	%		-
Dividend Yield		0	%		-
Expected term		10.0 years			-
Expected Volatility		89	%		-
Expected forfeiture rate		20	%		-