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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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