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Income Taxes (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 14, 2013 | Dec. 26, 2015 | Dec. 27, 2014 | Dec. 28, 2013
Current: |  |  |  |
Federal |  | $ 0 | $ 0 | $ (13,124,000)
State |  | 50,000 | 50,000 | 12,000
Foreign | $ 1,200,000 | 0 | 0 | (34,000)
Other Tax Expense (Benefit) |  | 50,000 | 50,000 | (13,146,000)
Total current provision |  | (25,000) | (180,000) | (12,933,209)
Deferred: |  |  |  |
Federal |  | (5,356,000) | (9,554,000) | (3,616,000)
State |  | (62,000) | (1,709,000) | 644,000
Foreign |  | 188,000 | 411,000 | (565,000)
Change in valuation allowance |  | 5,155,000 | 10,622,000 | 3,750,000
Total deferred provision |  | (75,000) | (230,000) | 213,000
Total (benefit) provision for income taxes |  | (25,000) | (180,000) | (12,933,000)
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract] |  |  |  |
Tax provision at federal statutory rates |  | (5,187,000) | (9,964,000) | (13,322,000)
State tax liability |  | 33,000 | 33,000 | 8,000
Foreign deferred |  | 153,000 | 371,000 | (644,000)
Foreign withholding |  | (75,000) | (196,000) | 308,000
Outside basis in KTC and Kowon, net |  | (180,000) | (394,000) | (202,000)
Goodwill |  | 0 | 0 | 0
Non-deductible expenses |  | (402,000) | (21,000) | 306,000
Increase in net state operating loss carryforwards |  | (158,000) | (177,000) | (2,868,000)
Utilization of NOL for R&D refund |  | 719,000 | 1,089,000 | 0
Provision to tax return adjustments and state tax rate change |  | 264,000 | (516,000) | (33,000)
Tax credits |  | (501,000) | (610,000) | (390,000)
Effective Income Tax Rate Reconciliation, Deduction, Amount |  | 40,000 | 196,000 | 558,000
Non-deductible equity compensation |  | (34,000) | (687,000) | (418,000)
Other, net |  | 148,000 | 74,000 | 14,000
Change in valuation allowance |  | 5,155,000 | 10,622,000 | 3,750,000
Total (benefit) provision for income taxes |  | (25,000) | (180,000) | (12,933,000)
Deferred tax liability: |  |  |  |
Intangible asset |  | 0 | 0 |
Foreign withholding liability |  | (1,207,000) | (1,282,000) |
Foreign unremitted earnings |  | (2,701,000) | (2,882,000) |
Deferred Tax assets: |  |  |  |
Federal net operating loss carryforwards |  | 28,984,000 | 22,758,000 |
State net operating loss carryforwards |  | 1,913,000 | 1,689,000 |
Foreign net operating loss carryforwards |  | 2,430,000 | 2,612,000 |
Equity awards |  | 2,249,000 | 2,508,000 |
Tax credits |  | 6,768,000 | 6,267,000 |
Equipment |  | 1,113,000 | 1,024,000 |
Investments |  | 3,240,000 | 5,279,000 |
Other |  | 3,667,000 | 3,253,000 |
Net deferred tax assets |  | 46,456,000 | 41,226,000 |
Valuation allowance |  | (47,663,000) | (42,508,000) |
Net deferred tax assets after deducting valuation allowance |  | (1,207,000) | (1,282,000) |
Pretax foreign (losses) earnings |  | (968,000) | (2,588,000) | (4,966,000)
Total (benefit) provision for income taxes |  | (25,000) | (180,000) | $ (12,933,000)
Increase (decrease) in valuation allowance |  | 5,200,000 |  |
Unrecorded benefits from stock award |  | 10,300,000 |  |
Deferred Tax Liabilities, Parent's Basis in Discontinued Operation |  | $ 2,700,000 |  |
Maximum |  |  |  |
Deferred Tax assets: |  |  |  |
The state impact of any federal changes, subject to examination by various states (in years) |  | 1 year |  |
Segments excluding KTC |  |  |  |
Deferred Tax assets: |  |  |  |
Increase (decrease) in valuation allowance |  |  | 10,600,000 |
Utiilzation of operating loss carryforwards |  |  | $ 21,400,000 |
International jurisdictions | Minimum |  |  |  |
Deferred Tax assets: |  |  |  |
Income tax returns examination period |  | 3 years |  |
International jurisdictions | Maximum |  |  |  |
Deferred Tax assets: |  |  |  |
Income tax returns examination period |  | 7 years |  |
Federal |  |  |  |
Deferred Tax assets: |  |  |  |
Net operating loss carryforwards available for tax purposes |  | $ 82,800,000 |  |
State | Minimum |  |  |  |
Deferred Tax assets: |  |  |  |
Income tax returns examination period |  | 3 years |  |
State | Maximum |  |  |  |
Deferred Tax assets: |  |  |  |
Income tax returns examination period |  | 5 years |  |

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