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Commitments and Contingencies (Details Textual) - USD ($)
Dec. 28, 2018
Oct. 23, 2017
Jun. 20, 2017
Commitments And Contingencies Disclosure [Abstract]      
Due to Employees $ 41,000    
Purchase Commitment, Remaining Minimum Amount Committed $ 4,668,000    
Loss contingency, accrual, current     $ 7,000,000
Loss contingency, receivable, current   $ 7,000,000