COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Jun. 30, 2012

COMMITMENTS AND CONTINGENCIES

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

	For the six months ended June 30,
	2012			2011
Balance, beginning of period	$	983		$	1,071
Warranty expense	(122		)	30
Warranty claims	(99		)	(204		)
Balance, end of period	$	762		$	897

Schedule of the activity in the accounts receivable allowance liability

	For the six months ended June 30,
	2012			2011
Balance at beginning of period	$	438		$	489
Bad debt expense	231			343
Write-offs	(35		)	(3		)
Balance at end of period	$	634		$	829