Consolidated Statements of Operations and Comprehensive Loss (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Statement [Abstract]      
Net sales $ 48,144 $ 37,895 $ 34,294
Cost of sales 39,891 30,953 27,488
Gross profit 8,253 6,942 6,806
Operating expenses:      
Selling, general and administrative 7,379 6,751 7,075
Research and development 588 1,336 2,218
Total operating expenses 7,967 8,087 9,293
Operating income (loss) 286 (1,145) (2,487)
Other income (expense):      
Other income (expense), net 115 582 (72)
Interest income (expense), net (126) 17 61
Operating income (loss) before provision for income taxes 275 (546) (2,498)
Provision for income taxes (14) (51) (2)
Net income (loss) 261 (597) (2,500)
Net income (loss) per share:      
Basic $ 0.02 $ (0.04) $ (0.18)
Diluted $ 0.02 $ (0.04) $ (0.18)
Weighted-average number of common shares outstanding:      
Basic 14,323 14,184 14,184
Diluted 14,789 14,184 14,184
Comprehensive loss:      
Net income (loss) 261 (597) (2,500)
Foreign currency translation adjustments (708) (5) 104
Comprehensive loss $ (447) $ (602) $ (2,396)