Description of Operations and Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Description of Operations and Summary of Significant Accounting Policies
Property and equipment, net	$ 221	$ 324
Depreciation expense	$ 100	$ 1,100	$ 2,700
Capitalized Fees Paid to a Related Party
Capitalized fees paid to a related party, useful life	15 years
Equipment, furniture and fixtures | Minimum
Description of Operations and Summary of Significant Accounting Policies
Estimated useful life	5 years
Equipment, furniture and fixtures | Maximum
Description of Operations and Summary of Significant Accounting Policies
Estimated useful life	7 years
Software and computer equipment
Description of Operations and Summary of Significant Accounting Policies
Estimated useful life	3 years
Capitalized software
Description of Operations and Summary of Significant Accounting Policies
Estimated useful life	3 years