COMMITMENTS AND CONTINGENCIES (Tables)

9 Months Ended

Sep. 30, 2013

COMMITMENTS AND CONTINGENCIES

Schedule of changes in the carrying amount of the total product warranty liability

	For the Nine Months Ended September 30,
	2013			2012
Balance, beginning of period	$	707		$	983
Reduction of warranty reserve	(25		)	(133		)
Warranty claims	(7		)	(99		)
Balance, end of period	$	675		$	751

Schedule of the activity in the accounts receivable allowance liability

	For the Nine Months Ended September 30,
	2013			2012
Balance at beginning of period	$	453		$	438
Bad debt expense	(38		)	200
Write-offs	(236		)	(123		)
Balance at end of period	$	179		$	515