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ACCOUNTS RECEIVABLE (Details 2) (Trade receivables, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Trade receivables
Movement in the allowance for doubtful accounts
Balance, beginning of year	$ 3,642	$ 4,606
Bad debt expense	386	(83)
Write-offs and settlements	(1,608)	(827)
Foreign exchange	15	(54)
Balance, end of year	$ 2,435	$ 3,642

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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