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ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Accumulated other comprehensive loss [Abstract] |  |  |  |  |  |  |
Foreign currency translation adjustment, net of taxes of ($792) at September 30, 2016 and ($336) at December 31, 2015 |  | $ (22,504) |  | $ (22,504) |  | $ (19,305) |
Unrealized holding gains on available-for-sale securities, net of taxes of $339 at September 30, 2016 and $265 at December 31, 2015 |  | 546 |  | 546 |  | 434 |
Unfunded SERP liability, net of taxes of ($1,191) at September 30, 2016 and ($1,327) at December 31, 2015 |  | (2,439) |  | (2,439) |  | (3,005) |
Accumulated other comprehensive loss |  | (24,397) |  | (24,397) |  | (21,876) | [1]
Accumulated other comprehensive loss, tax [Abstract] |  |  |  |  |  |  |
Foreign currency translation adjustment, tax |  | (792) |  | (792) |  | (336) |
Unrealized holding gains on available-for-sale securities, tax |  | 339 |  | 339 |  | 265 |
Unfunded SERP liability, tax |  | (1,191) |  | (1,191) |  | $ (1,327) |
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] |  |  |  |  |  |  |
Balance at beginning of period | [1] |  |  | 233,122 |  |  |
Other comprehensive income before reclassifications |  |  |  | (2,718) |  |  |
Amount reclassified from accumulated other comprehensive loss |  |  |  | 197 |  |  |
Net current period other comprehensive (loss) income |  | (77) | $ (1,465) | (2,521) | $ (8,113) |  |
Balance at end of period |  | 161,996 |  | 161,996 |  |  |
AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | (21,876) |  |  |
Balance at end of period |  | (24,397) |  | (24,397) |  |  |
Foreign Currency Translation Adjustment [Member] |  |  |  |  |  |  |
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | (19,305) |  |  |
Other comprehensive income before reclassifications |  |  |  | (3,199) |  |  |
Amount reclassified from accumulated other comprehensive loss |  |  |  | 0 |  |  |
Net current period other comprehensive (loss) income |  |  |  | (3,199) |  |  |
Balance at end of period |  | (22,504) |  | (22,504) |  |  |
Unrealized Holding Gains on Available-for-Sale Securities [Member] |  |  |  |  |  |  |
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 434 |  |  |
Other comprehensive income before reclassifications |  |  |  | 112 |  |  |
Amount reclassified from accumulated other comprehensive loss |  |  |  | 0 |  |  |
Net current period other comprehensive (loss) income |  |  |  | 112 |  |  |
Balance at end of period |  | 546 |  | 546 |  |  |
Unfunded SERP Liability [Member] |  |  |  |  |  |  |
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward] |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | (3,005) |  |  |
Other comprehensive income before reclassifications |  |  |  | 369 |  |  |
Amount reclassified from accumulated other comprehensive loss | [2] |  |  | 197 |  |  |
Net current period other comprehensive (loss) income |  |  |  | 566 |  |  |
Balance at end of period |  | $ (2,439) |  | $ (2,439) |  |  |
[1] | (Revised)
[2] | This reclassification relates to the amortization of prior service costs and gains/losses associated with the Company's SERP plan. This expense is allocated between cost of sales and selling, general and administrative expense based upon the employment classification of the plan participants.

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