CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net earnings (loss)	$ 1,463	$ (574)	$ 2,339	$ 2,670
Other comprehensive (loss) income:
Currency translation adjustment	(749)	340	(334)	938
Reclassification adjustment for gain on sale of marketable securities included in net earnings (loss) net of tax of ($45)	0	(74)	0	(74)
Reclassification adjustment for write-down of marketable securities included in net earnings net of tax of $181	296	0	296	0
Unrealized holding gains on marketable securities arising during the period, net of taxes of ($72), ($210), ($59) and ($71), respectively	(117)	(345)	(91)	(119)
Change in unfunded SERP liability, net of taxes of $18 and $35, respectively	40	0	80	0
Other comprehensive (loss) income	(530)	(79)	(49)	745
Comprehensive income (loss)	$ 933	$ (653)	$ 2,290	$ 3,415