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Condensed Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
OPERATING ACTIVITIES    
Net income $ 1,019,516 $ 769,641
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation 5,904 13,720
Deferred income taxes 171,000 (80,000)
Stock compensation expense 44,865 58,193
Changes in operating assets and liabilities:    
Accounts receivable (1,235,249) (2,991)
Inventory 14,404 195,944
Prepaid expenses 426,540 98,883
Net investment in sales type leases 19,390 (195,525)
Accounts payable, accrued expenses and other 122,812 51,976
Payroll liabilities (515) 33,198
Customer deposits (649,300) 181,541
Income tax receivable (accrued income taxes) (522,681) 295,300
Net cash provided by (used in) operating activities (583,314) 1,419,880
INVESTING ACTIVITIES    
Purchase of investment 0 (57,000)
Net cash used in investing activities 0 (57,000)
FINANCING ACTIVITIES    
Proceeds from Paycheck Protection Program loan 0 473,400
Net cash provided by financing activities 0 473,400
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (583,314) 1,836,280
CASH AND CASH EQUIVALENTS    
Beginning of period 4,945,913 1,731,869
End of period 4,362,599 3,568,149
Non-cash investing and financing activities:    
Treasury stock cost related to compensation 0 12,047
Supplemental cash flow information:    
Operating cash outflow for operating leases $ 32,575 $ 28,778