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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2017	Jun. 28, 2020	Jun. 28, 2020	Jun. 30, 2019	Jun. 24, 2018
Income Taxes [Line Items]
U.S. Federal corporate income tax rate	35.00%		21.00%	21.00%	28.30%
Provisional tax benefit					$ 396
Additional tax benefit				$ 843
Decrease in effective tax rate				8.40%
Total tax benefit related to enactment				$ 1,239
Tax benefit related to re-measurement of deferred tax balances				3,986
Tax expense, net of foreign tax credits				2,747
Capital loss carryforwards		$ 13,791	$ 13,791	1,105
U.S state net operating loss carryforwards		57,809	$ 57,809
Net operating loss carryforwards beginning expiration year			2022
Unrecognized Tax Benefits, Interest on Income Taxes Accrued		568	$ 568
Amount of Unrecognized Deferred Tax Liability		3,732	3,732
Capital Loss Carryforward
Income Taxes [Line Items]
Capital loss carryforwards		54,164	$ 54,164
U.S. Federal Foreign Tax Credits [Member]
Income Taxes [Line Items]
Net operating loss carryforwards beginning expiration year			2021
U.S federal net operating loss carry a full valuation allowance		13,485	$ 13,485
Foreign Tax Credits [Member]
Income Taxes [Line Items]
U.S federal net operating loss carry a full valuation allowance		3,265	3,265
Earliest Tax Year [Member]
Income Taxes [Line Items]
State deferred tax expense component, utilization of net operating loss carryforwards		20		106	116
Foreign deferred tax expense component, utilization of net operating loss carryforwards		702		655	773
Valuation allowance, deferred tax asset, increase (decrease), amount		11,419		10,877	2,814
Unrecognized tax benefits that would impact effective tax rate		1,112	1,112
Unrecognized tax benefits, income tax penalties and interest expense			69	22	(1,030)
Unrecognized tax benefits, income tax penalties and interest accrued		132	132	63	$ 41
Undistributed earnings of foreign subsidiaries		31,872	31,872
U.S. Federal [Member]
Income Taxes [Line Items]
Net operating loss		89	$ 89	$ 3,122
U.S. Federal [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Open tax year			2014
Net Operating Loss Held Outside U.S Consolidated Tax Filing Group [Member]
Income Taxes [Line Items]
U.S state net operating loss carryforwards		16,653	$ 16,653
Net operating loss carryforwards beginning expiration year			2021
Net Operating Loss Held Outside U.S Consolidated Tax Filing Group [Member] | Capital Loss Carryforward
Income Taxes [Line Items]
Capital loss carryforwards		4,489	$ 4,489
Net Operating Loss Held Outside U.S Consolidated Tax Filing Group [Member] | U.S. Federal NOL [Member]
Income Taxes [Line Items]
U.S federal net operating loss carryforwards		4,383	4,383
Foreign Net Operating Loss Carry Forwards [Member]
Income Taxes [Line Items]
U.S federal net operating loss carry a full valuation allowance		$ 6,666	$ 6,666
State and Local Jurisdiction [Member] | Earliest Tax Year [Member] | North Carolina Department of Revenue [Member]
Income Taxes [Line Items]
Open tax year			2014
State and Local Jurisdiction [Member] | Latest Tax Year [Member] | North Carolina Department of Revenue [Member]
Income Taxes [Line Items]
Open tax year			2015

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