Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accrued Liabilities and Other Liabilities
Employee related expenses	$ 4,634	$ 1,174
Deferred revenue	1,526	851
Contract labor	733
Interest	115	16
Deferred rent	150	13
Professional fees	169
Income taxes payable	281	27
Other expenses	493	78
Total accrued expenses and other liabilities	$ 8,101	$ 2,159