SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

12 Months Ended

Dec. 31, 2011

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

SCHEDULE II(a) - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

ALLOWANCE FOR DOUBTFUL ACCOUNTS

	Balance at		Additions		Accounts						Balance at
	beginning		charged to		receivable			Other			end of
	of period		income		written off			Adjustments			period
Year ended -
December 31, 2009	$	614	$	—	$	—		$	(224	)	$	390
December 31, 2010	$	390	$	—	$	—		$	(12	)	$	378
December 31, 2011	$	378	$	267	$	(149	)	$	(72	)	$	424

SCHEDULE II(b) - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

WARRANTY RESERVE

	Balance at		Additions							Balance at
	beginning		charged to		Repairs			Other		end of
	of period		income		allowed			Adjustments		period
Year ended -
December 31, 2009	$	353	$	50	$	(105	)	$	—	$	298
December 31, 2010	$	298	$	463	$	(164	)	$	—	$	597
December 31, 2011	$	597	$	756	$	(761	)	$	—	$	592

SCHEDULE II(c) - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

INVENTORY RESERVE

	Balance at		Additions					Balance at
	beginning		charged to		Inventory			end of
	of period		income		write-offs			period
Year ended -
December 31, 2009	$	190	$	214	$	(148	)	$	256
December 31, 2010	$	256	$	210	$	(241	)	$	225
December 31, 2011	$	225	$	77	$	(145	)	$	157