Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v2.4.1.9
Commitments and Contingencies - Additional Information (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Commitments And Contingencies [Line Items]    
Rent expense $ 220us-gaap_OperatingLeasesRentExpenseNet $ 207us-gaap_OperatingLeasesRentExpenseNet
Offices and Certain Equipment    
Commitments And Contingencies [Line Items]    
Operating leases expiration date Jan. 31, 2022