Fixed Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Fixed Assets [Abstract]
Leasehold improvements, net	2,600,000	2,300,000
Property, Plant and Equipment [Line Items]
Fixed assets, gross	15,669,000	26,099,000
Less, accumulated depreciation and amortization	(12,270,000)	(22,061,000)
Fixed assets, total	3,399,000	4,038,000
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	2,166,000	2,133,000
Estimated useful life	3 years
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	8,031,000	12,035,000
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	7 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	133,000	230,000
Estimated useful life	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	5,327,000	11,526,000
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	8 years 6 months	1 year 3 months 18 days
Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	10 years 9 months 18 days	10 years 9 months 18 days
Construction in Progress and Other [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	12,000	175,000