v3.26.1
Segment Reporting: (Details)
 3 Months Ended 6 Months Ended
Jun. 27, 2026
USD ($)
Jun. 28, 2025
USD ($)
Jun. 27, 2026
USD ($)
segment
Jun. 28, 2025
USD ($)
Dec. 27, 2025
USD ($)
Segment Reporting          
Number of reportable operating segments | segment     1    
Number of non-reportable operating segments | segment     1    
Revenue:          
Other   $ 46,600   $ 2,354,500  
Revenues $ 21,966,000 20,416,800 $ 42,815,700 42,336,400  
Expenses:          
Selling, general and administrative expenses 7,506,400 6,589,200 15,376,000 14,024,000  
Reconciliation to operating income:          
Total income from operations 13,641,100 13,061,100 26,002,700 26,657,600  
Identifiable assets:          
Total identifiable assets 43,190,200   43,190,200   $ 24,884,100
Operating          
Revenue:          
Revenues 21,966,000 20,416,800 42,815,700 42,336,400  
Reconciliation to operating income:          
Total income from operations 13,641,100 13,061,100 26,002,700 26,657,600  
Depreciation and amortization:          
Total depreciation and amortization 180,900 187,600 364,600 373,300  
Operating | Franchising          
Revenue:          
Revenues 21,966,000 20,370,200 42,815,700 39,981,900  
Expenses:          
Merchandise COGS 818,500 766,500 1,437,000 1,654,800  
Selling, general and administrative expenses 7,506,400 6,585,000 15,376,000 13,936,300  
Total segment expenses 8,324,900 7,351,500 16,813,000 15,591,100  
Reconciliation to operating income:          
Total income from operations 13,641,100 13,018,700 26,002,700 24,390,900  
Depreciation and amortization:          
Total depreciation and amortization $ 180,900 187,600 $ 364,600 373,300  
Operating | Other          
Revenue:          
Revenues   46,600   2,354,500  
Reconciliation to operating income:          
Total income from operations   $ 42,400   $ 2,266,700