ACCUMULATED OTHER COMPREHENSIVE LOSS, Changes in Other Comprehensive Loss by Component (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of year	$ (1,427)
Other comprehensive income (loss) before reclassifications	(1,429)
Amounts reclassified from accumulated other comprehensive income	40	[1]
Net current period other comprehensive income	(1,389)
Balance at end of period	(2,816)
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of year	927
Other comprehensive income (loss) before reclassifications	(1,413)
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income	(1,413)
Balance at end of period	(486)
Unrealized Holding Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of year	256
Other comprehensive income (loss) before reclassifications	85
Amounts reclassified from accumulated other comprehensive income	0
Net current period other comprehensive income	85
Balance at end of period	341
Unfunded SERP Liability[Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of year	(2,610)
Other comprehensive income (loss) before reclassifications	(101)
Amounts reclassified from accumulated other comprehensive income	40
Net current period other comprehensive income	(61)
Balance at end of period	$ (2,671)

[1] This reclassification from accumulated other comprehensive income relates to the amortization of prior service costs 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.