Income Taxes: Income tax (Tables)

12 Months Ended

Dec. 31, 2013

Income Taxes [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

Income from continuing operations before taxes for the years ended December 31, 2013, 2012 and 2011 is as follows: 

	2013		2012			2011
United States	$	48,964	$	62,204		$	63,575
Foreign	3,750		(365		)	2,847
	$	52,714	$	61,839		$	66,422

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision (benefit) for income taxes for the years ended December 31, 2013, 2012 and 2011 is as follows:

	2013			2012			2011
Current:
Federal	$	14,575		$	21,072		$	19,246
State	2,145			2,080			1,246
Foreign	(70		)	678			785
	16,650			23,830			21,277
Deferred:
Federal	$	164		$	(2,276	)	$	169
State	(996		)	(796		)	326
Foreign	(3,522		)	(200		)	(19		)
	(4,354		)	(3,272		)	476
	$	12,296		$	20,558		$	21,753

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

Reconciliations of the provision for income taxes at the statutory rate to our effective tax rate for the years ended December 31, 2013, 2012 and 2011 are as follows:

	2013					2012					2011
	Amount			Percent		Amount			Percent		Amount			Percent
Federal tax at the expected statutory rate	$	18,450		35.0	%	$	21,644		35.0	%	$	23,247		35.0	%
State income tax, net of federal effect	1,126			2.1	%	1,356			2.2	%	1,460			2.2	%
Tax credits	(1,974		)	(3.7	)%	(1,465		)	(2.4	)%	(1,171		)	(1.8	)%
Tax-exempt interest and dividends	—			—	%	(23		)	(0.1	)%	(45		)	(0.1	)%
Domestic production activities/other	(403		)	(0.8	)%	(1,559		)	(2.5	)%	(1,508		)	(2.3	)%
Foreign income tax	(4,903		)	(9.3	)%	605			1.0	%	(230		)	(0.3	)%
	$	12,296		23.3	%	$	20,558		33.2	%	$	21,753		32.7	%

Deferred tax provision table text block [Table Text Block]

	2013			2012			2011
Allowance for doubtful accounts	$	4		$	(59	)	$	(24	)
Inventory reserves	341			143			1,147
Accruals	(470		)	(2,375		)	(464		)
State income taxes	552			177			(7		)
Acquired future tax deductions	40			50			293
Depreciation and amortization	(3,850		)	(700		)	(205		)
Tax credits	(971		)	(508		)	(264		)
	$	(4,354	)	$	(3,272	)	$	476

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2013			2012
Current deferred tax assets:
State income taxes	$	298		$	437
Foreign	706			400
Accruals/other	1,973			1,881
Tax credits	276			441
Allowance for doubtful accounts	140			101
Inventory reserves	958			1,247
Current deferred tax asset before valuation allowance	$	4,351		$	4,507
Valuation allowance	—			(214		)
	4,351			4,293
Non-current deferred tax asset:
Foreign	$	1,338		$	983
Accruals/other	546			536
Depreciation and amortization	(429		)	(458		)
Tax credits state	6,063			4,927
Non-current deferred tax asset before valuation allowance	$	7,518		$	5,988
Valuation allowance	$	—		$	(346	)
	$	7,518		$	5,642
Non-current deferred tax liability:
State income taxes	$	(2,163	)	$	(1,751	)
Foreign	—			(2,301		)
Accruals/other	(186		)	(186		)
Depreciation and amortization	(5,906		)	(6,429		)
Acquired future tax deductions	(610		)	(515		)
Stock-based compensation	5,684			5,581
Foreign currency translation adjustments	(449		)	354
	$	(3,630	)	$	(5,247	)

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

The following table summarizes our cumulative gross unrecognized tax benefits for 2013, 2012 and 2011: 

	2013			2012			2011
Beginning balance	$	4,236		$	4,978		$	4,411
Increases (decreases) to prior year tax positions	391			156			494
Increases to current year tax positions	1,353			490			764
Decrease related to settlements	—			(230		)	(392		)
Decrease related to lapse of statute of limitations	(436		)	(1,158		)	(299		)
Ending balance	$	5,544		$	4,236		$	4,978