Condensed Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss)	$ (686,325)	$ (581,794)
Adjustments to reconcile net income (loss) to net cash (used in) operating activities-
Depreciation and amortization	216,419	114,619
Provision for doubtful accounts, net change	0	(3,175)
Provision for inventory obsolescence, net change	0	(35,000)
Deferred taxes, net change	0	(189,353)
Amortization of debt issuance costs	5,886
Changes in operating assets and liabilities-
Accounts receivable	(33,189)	(16,200)
Inventories	7,645	97,763
Federal and state income taxes receivable	25,029	(40,280)
Prepaid expenses and other	(120,034)	(70,961)
Deposits and other	0	76,367
Accounts payable	141,419	57,329
Income taxes payable	0	(44,952)
Customer and tenant deposits	(6,186)	(26,804)
Accrued expenses	55,416	(40,896)
Deferred revenue	4,344	(18,972)
Net cash (used in) operating activities	(389,576)	(722,309)
CASH FLOWS (USED IN) INVESTING ACTIVITIES:
Purchases of property and equipment	(22,810)	(263,937)
Purchases of research and development equipment, software and space modifications not in service	(219,441)	(227,354)
Patent filing expense	0	(21,708)
Net cash (used in) investing activities	(242,251)	(512,999)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Principal payments made on term loan	(27,469)	(26,671)
Proceeds from issuance of subordinated debenture	75,000	0
Issuance of shares from option exercise	336,300	0
Net cash provided from (used in) financing activities	383,831	(26,671)
NET (DECREASE) IN CASH	(247,996)	(1,261,979)
CASH, BEGINNING OF PERIOD	1,243,746	1,766,621
CASH, END OF PERIOD	995,750	504,642
SUPPLEMENTAL INFORMATION:
Cash paid for interest	44,914	18,105
Cash paid for income tax	150	40,280
Income tax refund received	25,179	0
Non-cash financing and investing activities: warrants issued with subordinated debenture	$ 12,000	$ 0