Condensed Consolidated Statements of Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Deficit	Accumulated Other Comprehensive Income	Noncontrolling Interest
Beginning Balances at Dec. 31, 2013	$ 24,744	$ 8	$ 348,912	$ (2,777)	$ (320,876)	$ 1,227	$ (1,750)
Beginning Balances (in shares) at Dec. 31, 2013	7,507,000	7,507,000
Net loss	(11,664)				(11,591)		(73)
Other comprehensive loss	502					420	82
Issuance of common stock in connection with common stock offerings	35,744	3	35,741
Issuance of common stock in connection with common stock offerings (in shares)		2,803,000
Issuance of common stock in connection with ESPP	35		35
Issuance of common stock in connection with ESPP (in shares)		7,000
Issuance of common stock in connection with stock bonus and incentive plans	428		428
Issuance of common stock in connection with stock bonus and incentive plans (in shares)	1,000,000	42,000
Stock option grants in connection with stock bonus and incentive plans	68		68
Issuance of common stock in connection with exercise of options and warrants	859		859
Issuance of common stock in connection with exercise of options and warrants (in shares)	26,544	303,000
Stock-based compensation expense	996		996
Stock-based compensation expense (in shares)		5,000
Modification of equity awards	350		350
Issuance of warrants	906		906
Ending Balances at Sep. 30, 2014	$ 52,968	$ 11	$ 388,295	$ (2,777)	$ (332,467)	$ 1,647	$ (1,741)
Ending Balances (in shares) at Sep. 30, 2014	10,667,000	10,667,000