Commitments and Contingencies (Details 2) (USD $)	Dec. 31, 2012
Contractual obligations
Additional contingent payments	$ 19,000,000
Total obligations
Total	28,192,000
Less than 1 Year	21,883,000
1-2 Years	3,597,000
3-5 Years	2,598,000
More than 5 Years	114,000
Operating lease
Total obligations
Total	2,752,000
Less than 1 Year	532,000
1-2 Years	805,000
3-5 Years	1,301,000
More than 5 Years	114,000
Principally employment and consulting services
Total obligations
Total	6,060,000
Less than 1 Year	1,971,000
1-2 Years	2,792,000
3-5 Years	1,297,000
Major Vendors
Total obligations
Total	19,380,000
Less than 1 Year	$ 19,380,000