Note 3 - Income Taxes (Tables)

12 Months Ended

Sep. 30, 2022

Notes Tables

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

	2022			2021
Current:
Federal	$	2,688,000		$	5,420,000
State		1,208,000			2,835,000
		3,896,000			8,255,000
Deferred:
Federal		(23,200,000	)		24,385,000
State		(7,621,000	)		7,510,000
		(30,821,000	)		31,895,000
	$	(26,925,000	)	$	40,150,000

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

	2022			2021
Statutory federal income tax rate		21.0	%		21.0	%
State franchise taxes (net of federal tax benefit)		5.7			5.2
Effect of state rate change on beginning balance of deferred tax liabilities		(0.7	)		0.1
Dividends received deduction		0.4			(0.2	)
Others		(0.1	)		0.1
Effective tax rate		26.3	%		26.2	%

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

	2022			2021
Deferred tax assets attributable to:
Accrued liabilities, including supplemental compensation and vacation pay accrual	$	1,792,000		$	1,603,000
Impairment losses on marketable securities		(182,000	)		113,000
Bad debt reserves not yet deductible		56,000			55,000
Depreciation and amortization		2,686,000			3,065,000
Deferred revenues		1,316,000			1,836,000
Goodwill		451,000			520,000
Net operating losses		657,000			561,000
Credits and other		71,000			268,000
Total deferred tax assets		6,847,000			8,021,000
Deferred tax liabilities attributable to:
Unrealized gains on marketable securities		(32,120,000	)		(64,115,000	)
Net deferred income taxes	$	(25,273,000	)	$	(56,094,000	)

Summary of Operating Loss Carryforwards [Table Text Block]

Fiscal Year ended	California NOLs		Other State NOLs
September 30, 2032	$	---	$	.1
September 30, 2037		---		.1
September 30, 2038		4.8		.2
September 30, 2039		.7		.1
No expiration		---		2.1
Total	$	5.5	$	2.6