Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Schedule of Warrant Activity

The following is a summary with respect to warrants outstanding and exercisable at December 31, 2016 and 2015 and activity during the years then ended:

	2016				2015
			Weighted					Weighted
			Average					Average
			Exercise					Exercise
	Warrants		Price		Warrants			Price
Outstanding at January 1:		1,862,515	$	16.40		1,641,596		$	18.80
Granted during the year		950,000		1.00		272,728			1.60
Lapsed/terminated		-		-		(51,809	)		14.08
Outstanding at December 31:		2,812,515	$	11.20		1,862,515		$	16.40
Exercisable at December 31:		2,812,515	$	11.20		1,589,788		$	16.40
Weighted average months remaining
				34.6					34.3

Summary of Stock Option Activity Under Stock Option and Incentive Plans

The following is a summary with respect to options outstanding at December 31, 2016 and 2015 and activity during the years then ended:

	2016							2015
	Number of Options			Weighted Average Exercise Price		Weighted Average Life Remaining		Number of Options			Weighted Average Exercise Price		Weighted Average Life Remaining
							(in years)							(in years)
Outstanding at January 1:		1,106,140			11.56				1,232,073			11.68
Granted		37,500			1.00				13,388			2.40
Lapsed/terminated		(508,043	)		13.56				(139,321	)		11.80
Outstanding at December 31:		635,597			9.33		3.7		1,106,140			11.56		4.0
Exercisable at December 31:		610,611			10.85		3.7		907,124			11.08		4.6
Expected to vest at December 31:		25,000			1.00		4.3		86,516			8.00		3.2
Aggregate intrinsic value of outstanding options at December 31:	$	-						$	-
Aggregate intrinsic value of exercisable options at December 31:	$	-						$	-
Aggregate intrinsic value of options expected to vest at December 31:	$	-						$	-

Schedule of Assumptions Used to Compute the Share-based Compensation Expense for Stock Options and Warrants

The following table shows our weighted average assumptions used to compute the share-based compensation expense for stock options and warrants granted during the years ended December 31, 2016 and 2015:

	Years Ended December 31,
	2016			2015
Volatility		85.6	%		72.6	%
Expected option term		3.5 years			2.9 years
Risk-free interest rate		1.3	%		1.7	%
Expected forfeiture rate		0.0	%		0.0	%
Expected dividend yield		0.0	%		0.0	%

Summary of Restricted Stock

The following is a summary of activity of restricted stock during the years ended at December 31, 2016 and 2015:

	Shares			Weighted- average Grant Date Fair Value
Restricted shares outstanding, December 31, 2014		66,085		$	2.80
Restricted shares granted		38,750			1.00
Restricted shares vested		(89,835	)		2.36
Restricted shares outstanding, December 31, 2015		15,000		$	0.88
Restricted shares granted		231,000			0.56
Restricted shares vested		(15,000	)		0.88
Restricted shares outstanding, December 31, 2016		231,000		$	0.56