v2.4.0.8

Summary of Operations by Geographic Area (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers | $ 19,875 | $ 33,101 | $ 35,565 | $ 25,397 | $ 20,674 | $ 34,484 | $ 34,115 | $ 24,248 | $ 113,938 | $ 113,521 | $ 108,195
Operating income (loss) |  |  |  |  |  |  |  |  | 62 | (2,133) | (544)
Assets | 46,244 |  |  |  | 49,659 |  |  |  | 46,244 | 49,659 |
UNITED STATES |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  | 87,504 | 85,374 | 81,856
Operating income (loss) |  |  |  |  |  |  |  |  | 1,085 | (459) | 7
Assets | 36,339 |  |  |  | 38,341 |  |  |  | 36,339 | 38,341 | 35,317
CANADA |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net sales to external customers |  |  |  |  |  |  |  |  | 26,434 | 28,147 | 26,339
Operating income (loss) |  |  |  |  |  |  |  |  | (1,122) | (1,607) | (582)
Assets | 9,554 |  |  |  | 11,009 |  |  |  | 9,554 | 11,009 | 11,630
Other Countries |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  | 99 | (67) | 31
Assets | $ 351 |  |  |  | $ 309 |  |  |  | $ 351 | $ 309 | $ 789

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