CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,133,058	$ 240,145
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	92,372	113,682
Share-based compensation expense
Stock options	45,591	45,591
Deferred income taxes	231,298
(Increase) decrease in:
Accounts receivable	325,121	1,824,582
Inventories	(61,083)	110,592
Prepaid expenses and other current assets	(48,402)	(175,752)
Increase (decrease) in:
Accounts payable	(123,156)	(63,299)
Accrued expenses	(71,606)	(228,820)
Income taxes payable	76,192	9,497
Contract liability	(81,650)	(191,892)
Net cash provided by operating activities	1,517,735	1,684,326
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(77,348)	(72,846)
Net cash used in investing activities	(77,348)	(72,846)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividend paid		(19,788,092)
Net cash (used in) provided by financing activities		(19,788,092)
Net increase (decrease) in cash and cash equivalents	1,440,387	(18,176,612)
Cash and cash equivalents, beginning of year	8,265,606	23,784,867
Cash and cash equivalents, end of year	$ 9,705,993	$ 5,608,255