v3.26.1
Condensed Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net (loss) $ (287,043) $ (686,325)
Adjustments to reconcile net (loss) to net cash (used in) operating activities-    
   Depreciation and amortization 135,962 216,419
   Amortization of debt issuance costs 12,103 5,886
Changes in operating assets and liabilities-    
   Accounts receivable (54,335) (33,189)
   Inventories (205,902) 7,645
   Federal and state income taxes receivable 0 25,029
   Prepaid expenses and other (86,076) (120,034)
   Deposits and other 0 0
   Accounts payable 199,491 141,419
   Customer deposits (5,358) (6,186)
   Accrued expenses 29,029 55,416
   Deferred revenue (448) 4,344
Net cash (used in) operating activities (262,577) (389,576)
CASH FLOWS (USED IN) INVESTING ACTIVITIES:    
Purchases of sales and marketing equipment (5,370) (5,462)
Purchases of research and development equipment, software and space modifications (14,411) (17,348)
Purchases of research and development equipment, software and space modifications not in service 0 (219,441)
Net cash (used in) investing activities (19,781) (242,251)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:    
Principal payments made on term loan (28,290) (27,469)
Proceeds from issuance of subordinated debenture 0 75,000
Proceeds (related party) from issuance of term loan 500,000 0
Principal payments made on subordinated debentures (27,145) 0
Proceeds from issuance of shares from option exercise 0 336,300
Net cash provided from (used in) financing activities 444,565 383,831
NET INCREASE (DECREASE) IN CASH 162,207 (247,996)
CASH, BEGINNING OF PERIOD 746,001 1,243,746
CASH, END OF PERIOD 908,208 995,750
SUPPLEMENTAL INFORMATION:    
Cash paid for interest 59,264 44,914
Cash paid for income tax 0 150
Income tax refund received 0 25,179
Non-cash financing and investing activities: warrants issued with subordinated debenture $ 0 $ 12,000