CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2012	$ 6	$ 290	$ 283,281	$ (237,558)	$ (7)	$ 46,012
Balance (in shares) at Dec. 31, 2012	592	28,945,228
Cancellation of shares		(8)	(616)			(624)
Cancellation of shares (Shares)		(800,000)
Exercise of options			10			10
Exercise of options (in shares)		21,500
Conversion of Series N preferred shares (Shares)	(13)	520
Compensation cost related to stock options			532			532
Comprehensive loss				(6,396)	(37)	(6,433)
Ending Balance at Dec. 31, 2013	6	282	283,207	(243,954)	(44)	39,497
Balance (in shares) at Dec. 31, 2013	579	28,167,248
Conversion of Series N preferred shares (Shares)	(4)	160
Compensation cost related to stock options			123			123
Comprehensive loss				(25,571)	(6)	(25,577)
Ending Balance at Mar. 31, 2014	$ 6	$ 282	$ 283,330	$ (269,525)	$ (50)	$ 14,043
Balance (in shares) at Mar. 31, 2014	575	28,167,408