Statements of Cash Flows (unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating Activities
Net income (loss)	$ (500,400)	$ 157,300
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	17,000	12,700
Other assets	208,400	209,900
Other liabilities	(36,400)	(35,100)
Net income adjusted for non-cash operating activities	(311,400)	344,800
(Increase) decrease in assets
Accounts receivable	(108,200)	311,700
Inventory	(31,900)	(161,700)
Prepaid and other	100,500	68,400
Increase (decrease) in liabilities
Accounts payable and accrued expenses	97,700	37,300
Taxes on income		(26,100)
Total increase in operating capital	58,100	229,600
Net cash provided by (used in) operating activities	(253,300)	574,400
Investing Activities
Additions to fixed assets		(31,600)
Net cash used in investing activities		(31,600)
Financing Activities
Exercise of warrants		2,800
Net cash provided by financing activities		2,800
Increase (decrease) in cash	(253,300)	545,600
Cash at beginning of year	1,846,700	1,362,800
Cash at end of period	1,593,400	1,908,400
Supplemental Disclosure of Non Cash Investing Activities
Accumulated depreciation and amortization		600
Furniture, fixtures and equipment		$ (600)