Other Long-term Liabilities - Schedule of Other Long-term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Deferred rent liability	$ 785	$ 590
Leasehold improvements financing and other (see a and b below)	254	321
Unrecognized tax benefits	1,565	308	$ 549
Provision for settlement		867
Other	131
Other long-term liabilities	$ 2,735	$ 2,086