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INCOME TAXES - Deferred Tax (Details) - USD ($) $ in Thousands | Dec. 27, 2019 | Dec. 28, 2018
--- | --- | ---
Deferred tax assets: |  |
Accounts receivable allowance | $ 315 | $ 122
Other accrued liabilities | 2,124 | 2,714
Federal and state net operating losses | 18,717 | 20,569
Lease liability | 6,467 |
Stock compensation | 3,381 | 2,167
Adjustments to fair value of assets | 79 | 733
Other | 622 | 173
Total deferred tax assets | 31,705 | 26,478
Valuation allowance | (86) | (86)
Net deferred tax assets | 31,619 | 26,392
Deferred tax liabilities: |  |
Deferred revenue | (5,031) | (5,702)
Fixed assets | (618) | (116)
Intangible assets | (10,077) | (8,041)
Lease Right Of Use Asset | 6,127 |
Other | (454) | (212)
Deferred tax liability | (22,307) | (14,071)
Net deferred tax asset | $ 9,312 | $ 12,321

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