Debt - Debt Outstanding (Detail) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Senior Secured Debt, net	$ 30,159	$ 53,638
Issuance costs	(138)	(214)
Other Note Payable, net	2,971	5,340
Total debt	33,130	58,978
Total debt, long-term	33,130	58,978
Senior Secured Debt, net
Debt Instrument [Line Items]
Senior Secured Debt, net	25,000	50,000
Payment-in-kind (PIK) interest
Debt Instrument [Line Items]
Senior Secured Debt, net	5,297	3,852
Other Note Payable, net	471	340
Other Note Payable, net
Debt Instrument [Line Items]
Other Note Payable, net	$ 2,500	$ 5,000