v3.3.1.900

Stockholders' Equity - Stock-Based Compensation Included in Unaudited Results of Operations (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes | $ 218 | $ 86 | $ 109
Related deferred income tax benefits | 0 | 0 | 0
Share-based compensation expense | 218 | 86 | 109
Sales, General and Administrative [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes | 218 | 86 | 69
Research and Development [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes |  |  | 40
Non-employee Directors [Member] | Sales, General and Administrative [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes | 47 | 19 | 11
Officer Compensation [Member] | Sales, General and Administrative [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes | 97 | 39 | 40
Others [Member] | Sales, General and Administrative [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total share-based compensation expense before taxes | $ 74 | $ 28 | $ 18

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