Income Taxes - Schedule of Income Taxes Differs from Amount Computed by Applying Statutory U.S. Federal Income Tax Rate (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Income Tax Disclosure [Abstract] | |||
| Income tax expense at U.S. statutory rate of 34% | $ (4,003) | $ (1,400) | $ 2,063 |
| State income taxes, net of federal benefit | (353) | (195) | 466 |
| Effect of foreign subsidiaries | (687) | 163 | 7 |
| Foreign tax credit | (669) | ||
| Permanent items in connection with the purchase of Euroscan | 219 | ||
| Permanent items for the fair value adjustment of the Euroscan contingent consideration | (390) | ||
| Other | (350) | 257 | (193) |
| Change in valuation allowance | 7,287 | 1,754 | (1,048) |
| Income taxes | $ 1,225 | $ 408 | $ 1,295 |