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Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 2,341	$ 3,181
Other comprehensive income, net of taxes:
Cumulative translation adjustment	(1,355)	681
Changes in market value of investments:
Unrealized gain (loss), net of taxes (benefits) of $(3) and $140	(46)	316
Less: reclassification adjustment for net gains realized in net income, net of taxes of $0 and $8		(13)
Net change in market value of investments	(46)	303
Other comprehensive income (loss)	(1,401)	984
Comprehensive income	$ 940	$ 4,165

X

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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