Accounts Receivable, Net - Schedule of Accounts Receivable (Detail) - USD ($) $ in Thousands |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
|---|---|---|---|---|
| Continuing operations | ||||
| Accounts receivable | $ 11,392 | $ 5,311 | ||
| Less: Allowance for doubtful accounts | (126) | (131) | ||
| Accounts receivable, net | $ 11,266 | $ 5,180 |