Business, Liquidity and Summary of Significant Accounting Policies (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2015

Dec. 31, 2014

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of liabilities measured at fair value on a recurring basis

			Level 1					Level 3
	Balance at			Quoted prices in		Level 2			Significant
	December 31,			active markets for		Significant other			unobservable
(In thousands)	2014			identical assets		observable inputs			inputs
Liabilities:
Fair value liability for price adjustable warrants	$	9,225		$	-	$	-		$	9,225
Fair value liability for shares to be issued		75			75		-			-
Total liabilities at fair value	$	9,300		$	75	$	-		$	9,225

			Level 1				Level 3
			Quoted prices in		Level 2		Significant
	Balance at		active markets for		Significant other		unobservable
(In thousands)	June 30, 2015		identical assets		observable inputs		inputs
Liabilities:
Fair value liability for price adjustable warrants	$	5,582	$	-	$	-	$	5,582
Total liabilities at fair value	$	5,582	$	-	$	-	$	5,582

	Balance at December 31, 2013		Level 1 Quoted prices in active markets for identical assets		Level 2 Significant other observable inputs		Level 3 Significant unobservable inputs
Liabilities:
Fair value liability for price adjustable warrants	$	5,226	$	-	$	-	$	5,226
Fair value liability for shares to be issued		1,019		1,019		-		-
Total liabilities at fair value	$	6,245	$	1,019	$	-	$	5,226

	Balance at December 31, 2014		Level 1 Quoted prices in active markets for identical assets		Level 2 Significant other observable inputs		Level 3 Significant unobservable inputs
Liabilities:
Fair value liability for price adjustable warrants	$	9,225	$	-	$	-	$	9,225
Fair value liability for shares to be issued		75		75		-		-
Total liabilities at fair value	$	9,300	$	75	$	-	$	9,225

Schedule of activity of accrued restructuring liability determined by Level 3 inputs

	Facility Related Liabilities
(In thousands)	2013			2014
Balance, January 1	$	392		$	12
Cash payments		(380	)		(12	)
Balance, December 31	$	12		$	-

Schedule of fair value liability of price adjustable warrants determined by Level 3

				Weighted average as of each measurement date
	Fair value
	liability for price										Contractual
	adjustable warrants			Exercise		Stock					life		Risk free
	(in thousands)			Price		Price		Volatility			(in years)		rate
Balance at December 31, 2014	$	9,225		$	0.42	$	0.95		121	%		3.51		0.90	%
Change in fair value included in Statement of Operations		(3,643	)
Balance at June 30, 2015	$	5,582		$	0.42	$	0.59		102	%		2.09		0.70	%

				Weighted average as of each measurement date
	Fair value liability for price adjustable warrants (in thousands)			Exercise Price		Stock Price		Volatility			Contractual life (in years)		Risk free rate
Balance at December 31, 2012	$	4,169		$	0.28	$	0.46		146	%		4.64		0.66	%
Fair value of warrants issued in connection to amendments to notes payable		1,208			0.28		0.28		140	%		5.50		1.55	%
Change in fair value included in consolidated statement of operations		(151	)		-		-		-			-		-
Balance at December 31, 2013		5,226			0.28		0.4		124	%		4.08		1.30	%
Fair value of price-adjustable warrants issued in connection with Series C Convertible Preferred Shares		5,929			0.75		1.50		123	%		7.0		0.55	%
Exercise of Warrants		(1,917	)		0.36		1.14		133	%		3.07		0.77	%
Change in fair value included in consolidated statement of operations		(13	)		-		-		-			-		-
Balance at December 31, 2014	$	9,225		$	0.42		0.95		121	%		3.51		0.90	%

Schedule of anti-dilutive securities

	Three Months Ended June 30,				Six Months Ended June 30,
	2014		2015		2014		2015
Stock options outstanding		284,505		1,316,106		284,505		1,316,106
Warrants		7,031,058		1,323,291		21,310,695		1,323,291
Convertible preferred stock		-		8,000,000		8,000,000		8,000,000
Total		7,315,563		10,639,397		29,595,200		10,639,397

	Year Ended December 31,
	2013		2014
Stock options outstanding		284,829		1,084,106
Warrants		17,017,601		21,212,813
Common shares underlying Series C convertible preferred stock		-		8,000,000
Total		17,302,430		30,296,919

Schedule of reconciliation of basic and diluted net income (loss)

	Three Months Ended June 30,					Six Months Ended June 30,
	2014		2015			2014			2015
Net income (loss) – numerator basic	$	3,921	$	904		$	(11,157	)	$	1,318
Change in fair value liability for price adjustable warrants		-		(1,914	)		-			(3,643	)
Net loss excluding change in fair value liability for price adjustable warrants	$	3,921	$	(1,010	)	$	(11,157	)	$	(2,325	)
Weighted average common shares outstanding – denominator basic		25,633		26,036			23,563			26,036
Assumed conversion of Series C		102		-			-			-
Effect of price adjustable warrants		9,066		4,257			-			4,257
Weighted average dilutive common shares outstanding		34,801		30,293			23,563			30,293
Net income (loss) per common share – basic	$	0.15	$	0.03		$	(0.47	)	$	0.05
Net income (loss) per common share – diluted	$	0.11	$	(0.03	)	$	(0.47	)	$	(0.08	)