Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Schedule of other comprehensive income (loss) [Table Text Block]

The following summarizes the components of other comprehensive income (loss) accumulated in shareholders’ equity for the nine months endedSeptember 30, 2017 and nine months endedOctober 1, 2016:

	Foreign Currency Translation Adjustments			Defined Benefit Pension Plans			Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2017	$	(5,500	)	$	(6,662	)	$	(12,162	)
Other comprehensive income (loss) before reclassifications
Unrealized gains	$	2,498		$	—		$	2,498
Amounts reclassified from accumulated other comprehensive income (loss)	—			760			760
Tax effect	—			(289		)	(289		)
Net of tax amount	2,498			471			2,969
Balance at September 30, 2017	$	(3,002	)	$	(6,191	)	$	(9,193	)

	Foreign Currency Translation Adjustments			Defined Benefit Pension Plans			Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2016	$	(6,244	)	$	(7,150	)	$	(13,394	)
Other comprehensive income (loss) before reclassifications
Unrealized gains	$	1,487		$	—		$	1,487
Amounts reclassified from accumulated other comprehensive income (loss)	—			1,064			1,064
Tax effect	—			(410		)	(410		)
Net of tax amount	1,487			654			2,141
Balance at October 1, 2016	$	(4,757	)	$	(6,496	)	$	(11,253	)