Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities
Net loss	$ (477,080)	$ (237,245)
Adjustments to reconcile net loss to net cash provided by operating activities
Depreciation and amortization	299,698	301,211
Accretion of obligation for lease disposal costs	54,936	52,435
Equity based compensation	95,364	136,601
Gain on sale of property, plant, and equipment	0	(13,492)
Right-of-use asset changes, net	(3,358)	(3,358)
Changes in operating assets and liabilities:
Accounts receivable	(449,427)	(2,619)
Inventories	(228,778)	82,070
Prepaids and other current assets	392,200	183,353
Accounts payable and accrued liabilities	555,237	345,285
Unearned revenues	(28,749)	(276,026)
Net cash provided by operating activities	210,043	568,215
Cash flows from investing activities:
Proceeds from sale of property, plant, and equipment	0	36,000
Purchase of property, plant and equipment	(254,391)	(267,307)
Net cash used in investing activities	(254,391)	(231,307)
Cash flows from financing activities:
Proceeds from sale of stock and exercise of options and warrants	14,883	8,627
Payments on financing lease	0	(2,304)
Proceeds from the issuance of notes payable	45,515	0
Principal payments on notes payable	(264,050)	(124,364)
Net cash used in financing activities	(203,652)	(118,041)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(248,000)	218,867
Cash, cash equivalents, and restricted cash at beginning of period	3,377,233	3,568,893
Cash, cash equivalents, and restricted cash at end of period	3,129,233	3,787,760
Supplemental disclosure of cash flow activities:
Cash paid for interest	160,973	157,320
Cash paid for income taxes	66	0
Supplemental disclosure of noncash financing and investing transactions
Decrease in current installments of notes payable for issuance of stock	25,000	0
Increase in operating lease right-of-use asset and right-of-use liability for new lease	830,720	0
Decrease in accrued interest and increase in equity for conversion of dividends to stock	90,660	90,420
Cash and cash equivalents	1,651,548	2,372,983
Restricted cash included in long-term assets	1,477,685	1,414,777
Total cash, cash equivalents, and restricted cash shown in statement of cash flows	$ 3,129,233	$ 3,787,760