Quarterly report pursuant to Section 13 or 15(d)

Leases - Schedule of Future Minimum Rental Payments Pursuant to Capital and Operating Leases (Detail)

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Leases - Schedule of Future Minimum Rental Payments Pursuant to Capital and Operating Leases (Detail) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Leases [Abstract]    
Capital leases, 2017 $ 306  
Capital leases, 2018 514  
Capital leases, 2019 33  
Capital leases, 2020 0  
Capital leases, 2021 0  
Capital leases, Thereafter 0  
Total capital leases require payments 853  
Less amounts representing interest (3.5%) (22)  
Present value of minimum lease payments 831  
Present value of minimum lease payments 831  
Less current maturities (593) $ (2,938)
Long-term capital lease liability 238 $ 2,573
Operating leases, 2017 424  
Operating leases, 2018 1,003  
Operating leases, 2019 902  
Operating leases, 2020 178  
Operating leases, 2021 181  
Operating leases, Thereafter 938  
Total operating leases require payments 3,626  
Capital and operating leases, 2017 730  
Capital and operating leases, 2018 1,517  
Capital and operating leases, 2019 935  
Capital and operating leases, 2020 178  
Capital and operating leases, 2021 181  
Capital and operating leases, Thereafter 938  
Total Capital and operating leases require payments $ 4,479