Commitments and Contingencies (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2014 item sqft	Mar. 31, 2013
Commitments and Contingencies
Number of office locations	3
Area of office (in square feet)	6,000
Future Minimum Lease Payments
2014 (remaining)	$ 1,026,000
2015	712,000
Total	1,738,000
Sublease Rental Income
2014 (remaining)	730,000
2015	530,000
Total	1,260,000
Net Lease Payments
2014 (remaining)	296,000
2015	182,000
Total	478,000
Rental expense, net of sublease rental income	65,000	141,000
Capstone
Commitments and contingencies
Monthly base rental income from sublease	$ 7,600
Minimum notice period required for adjusting space needs under sublease arrangements	30 days