Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax			$ (1,718)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			0
Stockholders' Equity Attributable to Parent			266,358
Stockholders' Equity Attributable to Parent	$ 316,401		316,401
Other Comprehensive Income (Loss), Tax			251
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(400)	$ 180	(1,484)	$ 388
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax	3	5	7	9
Other Comprehensive Income (Loss), Net of Tax	(404)	185	(1,467)	396
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(7)	$ 0	10	$ (1)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax			(1,741)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			0
Stockholders' Equity Attributable to Parent			590
Stockholders' Equity Attributable to Parent	(894)		(894)
Other Comprehensive Income (Loss), Tax			257
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax			10
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			0
Stockholders' Equity Attributable to Parent			(16)
Stockholders' Equity Attributable to Parent	(9)		(9)
Other Comprehensive Income (Loss), Tax			(3)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), before Reclassifications, before Tax			13
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			0
Stockholders' Equity Attributable to Parent			(27)
Stockholders' Equity Attributable to Parent	(17)		(17)
Other Comprehensive Income (Loss), Tax			(3)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity Attributable to Parent			547
Stockholders' Equity Attributable to Parent	$ (920)		$ (920)