Note 3 - Income Taxes (Tables)

12 Months Ended

Sep. 30, 2023

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	2023		2022
Current:
Federal	$	1,275,000	$	2,688,000
State		49,000		1,208,000
		1,324,000		3,896,000
Deferred:
Federal		3,940,000		(23,200,000	)
State		1,386,000		(7,621,000	)
		5,326,000		(30,821,000	)
	$	6,650,000	$	(26,925,000	)

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2023			2022
Statutory federal income tax rate		21.0	%		21.0	%
State franchise taxes (net of federal tax benefit)		5.0			5.7
Effect of state rate change on beginning balance of deferred tax liabilities		(1.0	)		(0.7	)
Dividends received deduction		(1.6	)		0.4
Others		0.3			(0.1	)
Effective tax rate		23.7	%		26.3	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2023			2022
Deferred tax assets attributable to:
Accrued liabilities, including supplemental compensation and vacation pay accrual	$	1,990,000		$	1,792,000
Impairment losses on marketable securities		(306,000	)		(182,000	)
Bad debt reserves not yet deductible		55,000			56,000
Depreciation and amortization		2,206,000			2,686,000
Deferred revenues		1,068,000			1,316,000
Goodwill		370,000			451,000
Net operating losses		281,000			657,000
Credits and other		(3,000	)		71,000
Total deferred tax assets		5,661,000			6,847,000
Deferred tax liabilities attributable to:
Unrealized gains on marketable securities		(36,260,000	)		(32,120,000	)
Net deferred income taxes	$	(30,599,000	)	$	(25,273,000	)

Summary of Operating Loss Carryforwards [Table Text Block]

Fiscal Year ended (in million)	California NOLs		Other State NOLs
September 30, 2029 through September 30, 2036	$	---	$	.2
September 30, 2037		---		.1
September 30, 2038		.9		.2
September 30, 2039		.4		.1
No expiration		---		2.0
Total	$	1.3	$	2.6