v3.8.0.1
Income Taxes - Reconciliation of the Statutory Federal Rate and Effective Tax Rate (Details)
12 Months Ended
Dec. 22, 2017
Dec. 21, 2017
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Income Tax Disclosure [Abstract]          
U.S. federal taxes at statutory rate 21.00% 34.00% 34.00% 34.00% 34.00%
State income taxes, net of federal benefit     3.00% 35.00% (1.00%)
Permanent differences     (33.00%) 108.00% (3.00%)
Foreign rate differential     (4.00%) (5.00%) (1.00%)
Change in valuation allowance - U.S.     (250.00%) 27.00% (31.00%)
Change in valuation allowance - foreign     (8.00%) 27.00% (5.00%)
Deferred rate change     227.00% 0.00% 0.00%
Total     (31.00%) 226.00% (7.00%)