Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Operating leases	$ 79
Vendor and consulting agreements	1,551
Convertible debentures	42,959
Total	44,589
2013 [Member]
Operating leases	52
Vendor and consulting agreements	396
Convertible debentures	0
Total	448
2014 [Member]
Operating leases	27
Vendor and consulting agreements	385
Convertible debentures	42,959
Total	43,371
2015 [Member]
Operating leases	0
Vendor and consulting agreements	385
Convertible debentures	0
Total	385
2016 [Member]
Operating leases	0
Vendor and consulting agreements	385
Convertible debentures	0
Total	$ 385