v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 28, 2026
Jun. 29, 2025
Jun. 28, 2026
Jun. 29, 2025
Dec. 28, 2025
Dec. 29, 2024
Summary Of Significant Accounting Policies [Line Items]            
Accumulated depreciation and amortization, property, plant, and equipment $ 1,400,000   $ 1,400,000   $ 1,300,000  
Accumulated amortization of software 3,400,000   3,400,000   3,100,000  
Deposit contracts, assets 1,800,000   1,800,000   1,800,000  
Impairment of long-lived assets held-for-use     0   0  
Revenue, remaining performance obligation, amount 0   0   0  
Contract with customer, performance obligation satisfied in previous period     0 $ 0    
Capitalized contract cost, gross 0   0      
Accounts receivable, net of allowance for credit losses $ 11,944,000   $ 11,944,000   11,898,000 $ 17,100,000
Effective income tax rate reconciliation, percent 12.00% 23.00% (11.00%) (22.00%)    
Valuation allowance $ 1,500,000   $ 1,500,000   $ 1,500,000  
Minimum            
Summary Of Significant Accounting Policies [Line Items]            
Useful life 3 years   3 years      
Maximum            
Summary Of Significant Accounting Policies [Line Items]            
Useful life 10 years   10 years