Stock-Based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Option activity under the Plans for the year ended December 31, 2018, was as follows (in thousands, except as noted):

						Weighted
				Weighted-		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Options			Price		Term		Value
				(per share)		(in years)
Year Ended December 31, 2018
Outstanding at December 31, 2017		32		$	232.00		4.0	$	-
Granted		20			34.60		9.3
Forfeited		-			-
Expired		(15	)		267.20
Outstanding at December 31, 2018		37		$	112.60		7.5	$	-
Vested and expected to vest December 31, 2018		31		$	124.60		7.2	$	-
Exercisable at December 31, 2018		15		$	181.00		5.1	$	-

Option activity under the Plans for the year ended December 31, 2017, was as follows (in thousands, except as noted):

						Weighted
				Weighted-		Average
				Average		Remaining		Aggregate
				Exercise		Contractual		Intrinsic
	Options			Price		Term		Value
				(per share)		(in years)
Year Ended December 31, 2017
Outstanding at December 31, 2016		35		$	266.00		5.2	$	2,241
Granted		3			150.00		9.3
Forfeited		(4	)		330.00
Expired		(2	)		426.00
Outstanding at December 31, 2017		32		$	232.00		4.0	$	-
Vested and expected to vest December 31, 2017		31		$	230.00		3.8	$	-
Exercisable at December 31, 2017		28		$	214.00		3.3	$	-

Warrant [Member]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

For stock options granted during 2018 and 2017 the following weighted average assumptions were used in determining fair value:

	2018			2017
Risk-free interest rate		2.70	%		2.06	%
Expected volatility		90	%		99	%
Expected term in years		6.1			6.1
Dividend yield		-	%		-	%