Fixed Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fixed Assets [Abstract]
Leasehold improvements, net	$ 2,000,000	$ 2,600,000
Property, Plant and Equipment [Line Items]
Fixed assets, gross	14,531,000	15,669,000
Less, accumulated depreciation and amortization	(12,118,000)	(12,270,000)
Fixed assets, total	2,413,000	3,399,000
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	2,234,000	2,166,000
Estimated useful life	3 years
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	7,091,000	8,031,000
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	170,000	133,000
Estimated useful life	5 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Fixed assets, gross	5,020,000	5,327,000
Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	8 years 6 months	8 years 6 months
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	$ 16,000	$ 12,000