Note 1 - Basis of Presentation and Significant Accounting Policies (Details Textual) - USD ($)			12 Months Ended
	Nov. 16, 2022	Jul. 27, 2021	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Support and Content Hosting Contract, Term (Year)			1 year
Standard Product Warranty Term, Minimum (Day)			90 days
Standard Product Warranty Term, Maximum (Year)			1 year
Cash and Cash Equivalents, at Carrying Value, Total			$ 3,299,000	$ 9,989,000
Foreign Currency Transaction Gain (Loss), Realized			(63,000)	16,000
Accounts and Financing Receivables, Allowances			53,000	261,000
Capitalized Computer Software, Additions			2,400,000
Impairment, Long-Lived Asset, Held-for-Use, Total			328,000	0
Asset Retirement Obligation, Ending Balance			77,000	129,000	$ 134,000
Advertising Expense			358,000	439,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign			275,000
Litigation Settlement, Amount Awarded to Other Party			0	0
Stock Issued During Period, Value, New Issues		$ 3,500,000	4,016,000	3,517,000
Employee Severance [Member]
Restructuring Charges, Total			0
One-time Termination Benefits [Member]
Restructuring Charges, Total			76,000	$ 157,000
Board of Directors Chairman [Member]
Stock Issued During Period, Value, New Issues		$ 1,250,000
Subsequent Event [Member] | Board of Directors Chairman [Member] | Stock With Subscription Agreement [Member]
Stock Issued During Period, Value, New Issues	$ 1,200,000
Agreement With NBE and Agreement With Burish [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount	$ 8,500,000
Debt Instrument, Interest Rate, Stated Percentage	12.00%
Debt Instrument, Number of Equal Installment	30
Cost of Revenue [Member]
Impairment, Long-Lived Asset, Held-for-Use, Total			$ 328,000
Minimum [Member]
Lessor, Sales-type Lease, Term of Contract (Year)			3 years
Maximum [Member]
Lessor, Sales-type Lease, Term of Contract (Year)			5 years
Accounts Payable [Member] | Supplier Concentration Risk [Member] | One Third-Party Contract Manufacturer [Member]
Concentration Risk, Percentage			23.00%	1.00%
UNITED STATES
Cash and Cash Equivalents, at Carrying Value, Total			$ 2,200,000
Japan and the Netherlands [Member]
Cash and Cash Equivalents, at Carrying Value, Total			1,100,000
US, UK and EU [Member]
Depreciation, Increase			$ 91,000