v3.3.1.900
Quarterly Financial Information - Quarterly Financial Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]                      
Net sales $ 10,192 $ 12,179 $ 10,945 $ 14,517 $ 17,937 $ 8,138 $ 10,445 $ 11,624 $ 47,833 $ 48,144 $ 37,895
Gross profit 1,256 2,001 1,608 2,554 2,956 1,195 2,029 2,073 7,419 8,253 6,942
Net income (loss) $ (959) $ (138) $ (678) $ 532 $ 730 $ (633) $ 109 $ 55 $ (1,243) $ 261 $ (597)
Basic and diluted net income (loss) per share $ (0.07) $ (0.01) $ (0.05) $ 0.04 $ 0.05 $ (0.04) $ 0.01 $ 0.00