Condensed Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows used in operating activities
Net loss	$ (130,000)	$ (32,000)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation, depletion, amortization and valuation provision	8,000	39,000
Increase in other assets	0	(2,000)
Decrease in accounts payable	(1,000)	(1,000)
Decrease in other accrued expenses	2,000	1,000
Net cash provided by (used in) operating activities	(121,000)	5,000
Cash flows from investing activities	0	0
Cash flows from financing activities
Acquisition of treasury stock	(4,000)	(13,000)
Net cash used in financing activities	(4,000)	(13,000)
Net decrease in cash and cash equivalents	(125,000)	(8,000)
Cash and cash equivalents at beginning of year	2,266,000	2,274,000
Cash and cash equivalents at end of year	2,141,000	2,266,000
Noncash Investing and Financing Activities
Recognition of operating lease liability	118,000	0
Retirement of treasury stock	$ 4,000	$ 13,000