Note 2 - Summary of Significant Accounting Policies - Cash and Restricted Cash (Details) - USD ($)	Sep. 30, 2020	Sep. 30, 2019
Cash	$ 27,327,000	$ 30,443,000
Restricted cash	962,000	960,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	$ 28,289,000	$ 31,403,000

Amount of cash and cash equivalents 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. Cash equivalents include, but are not limited to, 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.

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