Valuation and qualifying accounts

12 Months Ended

Dec. 31, 2014

Valuation and qualifying accounts

Valuation and qualifying accounts

18. Valuation and qualifying accounts

The Company’s valuation and qualifying accounts for the years ended December 31, 2014, 2013 and 2012 are as follows:

	Balance at		Additions		Changes to		Balance at
	beginning		charged to		reserve, net(1)		end of year
	of year		earnings
Year ended December 31, 2014
Allowance for doubtful accounts	$	1,051	$	577	$	39	$	1,667
Reserves for inventory		1,599		1,752		(899)		2,452
Valuation of deferred tax assets		1,395		-		205		1,600
Year ended December 31, 2013
Allowance for doubtful accounts	$	600	$	329	$	122	$	1,051
Reserves for inventory		1,199		757		(357)		1,599
Valuation of deferred tax assets		1,374		-		21		1,395
Year ended December 31, 2012
Allowance for doubtful accounts	$	1,247	$	259	$	(906)	$	600
Reserves for inventory		1,288		715		(804)		1,199
Valuation of deferred tax assets		830		-		544		1,374

(1) Increases (deductions) from the allowance for doubtful accounts equal accounts receivable written off and increases related to acquired businesses, less recoveries, against the allowance. Increases (deductions) from the reserves for inventory excess and obsolete items equal inventory written off against the reserve as items were disposed of and increases for related to acquired businesses,. Increases (deductions) to the valuation of deferred tax assets relate to the reversals due to changes in management’s judgments regarding the future realization of the underlying deferred tax assets.