Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CNB Capital Lease [Abstract]
Years ending December 31, 2013	$ 110,000
Years ending December 31, 2014	0
Years ending December 31, 2015	0
Total minimum payments	110,000
Less: amount representing interest	0
Present value of net minimum payments	110,000
Less: current portion	(110,000)	(515,000)
Long-term portion of capital lease obligations	0
Operating Leases [Abstract]
Years ending December 31, 2013	201,000
Years ending December 31, 2014	60,000
Years ending December 31, 2015	81,000
Total minimum payments	342,000
Total [Abstract]
Years ending December 31, 2013	311,000
Years ending December 31, 2014	60,000
Years ending December 31, 2015	81,000
Total minimum payments	452,000
Operating Leases [Abstract]
Rent expense under all operating leases	400,000	600,000
Debt Instrument [Line Items]
Outstanding SBLC related to the security of lease	200,000
Maximum borrowing amount under lease agreement	5,000,000
Amount drawn under lease agreement	4,900,000
Purchase obligation	0
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Maximum borrowing amount under lease agreement	5,000,000
Amount drawn under lease agreement	4,900,000
Master Equipment [Member] | Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Outstanding SBLC related to the security of lease	$ 100,000
Kitchener, Canada [Member]
Operating Leases [Abstract]
Lease area (in square feet)	5,222
Term of lease	6 months
Los Angeles, California [Member]
Operating Leases [Abstract]
Lease area (in square feet)	4,803
Lease expiration year	Jul. 31, 2015