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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
 6 Months Ended
Jun. 28, 2026
Jun. 29, 2025
CASH FLOWS FROM OPERATING ACTIVITIES    
Net loss $ (174,578) $ (274,818)
Adjustments to reconcile net loss to net cash    
Depreciation and amortization 303,151 301,120
Amortization of debt issuance costs included in interest expense 2,558 1,350
Provision for uncollectible loans made to unconsolidated affiliate 50,000 0
Stock-based compensation 59,459 93,735
Unrealized gain on marketable securities (399,190) (38,104)
Realized investment (gain) loss 143,899 (174,064)
Loss on equity method investment 24,748 204,705
Write down of inventory - bottled water held for sale 174,000 0
Non-cash operating lease expense (11,240) 5,955
Changes in operating assets and liabilities    
Receivables 36,793 36,266
Inventory 33 25,500
Prepaid expenses and other current assets (62,272) 52,875
Other assets (43,416) 0
Accounts payable 29,052 (162,575)
Accrued expenses (15,507) 5,678
Net cash provided by operating activities 117,490 77,623
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchase of property and equipment (92,975) (124,365)
Proceeds from sale of equipment 0 34,500
Loans to unconsolidated affiliates (227,088) (572,357)
Purchase of marketable securities (1,190,993) (2,144,077)
Proceeds from the sale of marketable securities 2,209,157 1,705,516
Purchase of inventory - bottled water held for resale 0 292,372
Other assets 0 18,110
Net cash provided by (used in) investing activities 698,101 (1,375,045)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from stock option exercises 45,000 0
Principal payments on long-term debt (95,668) (93,925)
Payment of deferred transaction costs (18,180) 0
Net cash used in financing activities (68,848) (93,925)
CHANGE IN CASH AND CASH EQUIVALENTS 746,743 (1,391,347)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 846,167 1,951,415
CASH AND CASH EQUIVALENTS, END OF PERIOD 1,592,910 560,068
SUPPLEMENTAL DISCLOSURES    
Cash paid for interest $ 34,790 $ 46,069