Note 4 - Balance Sheet (Tables)

12 Months Ended

Sep. 30, 2022

Notes Tables

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	September 30,
	2022		2021
Prepaid expenses	$	693	$	1,097
Prepaid insurance		31		11
Other current assets		221		45
Total	$	945	$	1,153

Schedule of Accrued Liabilities [Table Text Block]

	September 30,
	2022		2021
Accrued compensation	$	778	$	1,530
Accrued expenses		602		590
Accrued interest & taxes		80		241
Other accrued liabilities		61		161
Total	$	1,521	$	2,522