Note 1 - Nature of Operations and Summary of Significant Accounting Policies.: Regulatory Income Taxes, Policy (Policies)	12 Months Ended
Sep. 30, 2022
Policies
Regulatory Income Taxes, Policy	*Income Taxes*: The Company follows the asset and liability method of accounting for deferred income taxes. The asset and liability method requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between financial accounting and tax bases of assets and liabilities. The Company reports uncertainty in income taxes according to GAAP. There was no increase in liabilities for unrecognized tax benefits during the current year. The Company recognizes accrued interest related to unrecognized tax benefits in interest expense and penalties in general and administrative expense. There was neither interest nor penalty at September 30, 2022.

Disclosure of accounting policy for income taxes, including investment tax credits, and the related regulatory treatment (for example, whether deferred income tax accounting - normalization - is allowed in rate making).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 740
-Section 25
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=6501382&loc=d3e54136-110423

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 740
-Section 25
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6501382&loc=d3e54053-110423

Name:	us-gaap_RegulatoryIncomeTaxesPolicy
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration