CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net loss	$ (119,285)	$ (247,239)
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for bad debts, net of recoveries	0	12,323
Depreciation expense	10,959	10,815
Changes in operating assets and liabilities:
Accounts receivable	180,306	650,514
Prepaid expenses and other assets	0	12,314
Accounts payable and accrued liabilities	(36,037)	(32,096)
Net cash provided by operating activities	35,943	406,631
Cash flows from financing activities:
Proceeds of Paycheck Protection Program loan	0	64,097
Payments of note payable to a bank	0	(460,000)
Payments of note payable to shareholder	(60,000)	(65,000)
Net cash used in financing activities	(60,000)	(460,903)
Net decrease in cash and cash equivalents	(24,057)	(54,272)
Cash and cash equivalents at beginning of period	41,655	110,587
Cash and cash equivalents at end of period	17,598	56,315
Supplementary disclosure of cash flow information:
Interest paid	20,569	18,433
Income taxes	0	0
Non-cash investing and financing activities:
Exchange of note payable to a bank for note payable to shareholder	$ 0	$ 610,000