Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
OPERATING ACTIVITIES
Net income	$ 1,613,005	$ 1,624,453
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,065	7,879
Deferred income taxes	10,000	340,000
Provision for credit losses	46,934	87,627
Stock issued for services to non-employee	7,621	0
Stock compensation expense	139,226	218,993
Accrued interest on short-term investment	(2,805)
Changes in operating assets and liabilities:
Accounts receivable	344,803	(2,173,710)
Inventory	(1,343,983)	22,183
Prepaid expenses	52,368	382,270
Net investment in sales type leases	57,686	(58,911)
Accounts payable, accrued expenses and other	(109,922)	153,641
Payroll liabilities	(10,665)	(15,705)
Customer deposits	(699,817)	(90,378)
Income tax receivable and payable	289,424	(562,220)
Net cash provided by (used) in operating activities	394,940	(63,878)
INVESTING ACTIVITIES
Capital expenditures	(39,422)	0
Purchase of short-term investment	(1,500,000)
Capitalized software development costs	(16,691)	0
Net cash used in investing activities	(1,556,113)	0
FINANCING ACTIVITIES
Proceeds from employee stock options	3,010	0
Payment of dividends	(138,989)	(95,112)
Net cash used in financing activities	(135,979)	(95,112)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,297,152)	(158,990)
CASH AND CASH EQUIVALENTS
Beginning of year	4,786,923	4,945,913
End of year	3,489,771	4,786,923
Non-cash investing and financing activities:
Treasury stock cost related to compensation	$ 10,391	$ 0