Note 2 - Basis of Presentation and Significant Accounting Policies (Details Textual) $ in Thousands	Mar. 31, 2023 USD ($)	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)
Number of Wholly Owned Subsidiaries	8
Number of Additional Inactive Subsidiaries	2
Cash and Cash Equivalents, at Carrying Value, Total	$ 6,371	$ 12,736	$ 8,977
Restricted Cash, Total	739	100
Restricted Cash, Noncurrent	$ 96	$ 823

Represents the number of additional inactive subsidiaries of the reporting entity, as of a certain date.

No definition available.

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- Definition

Represents the number of wholly owned subsidiaries of the reporting entity as of a certain date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(1))
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-Publisher FASB
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- Definition

Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

+ Details

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- Definition

Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
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