Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment Include Amounts for Capital Leases (Detail) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 21,634 | $ 21,427 |
| Less: accumulated amortization | (10,186) | (9,572) |
| Property, plant and equipment, net | 11,448 | 11,855 |
| Plant, machinery, furniture and fixtures | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | 16,664 | 16,457 |
| Building and leasehold improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | 4,719 | 4,719 |
| Land and land improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 251 | $ 251 |