Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenues	$ 15,993,000	$ 12,301,000
Costs and expenses
Salaries and employee benefits	11,347,000	9,631,000
Decrease to the long-term supplemental compensation accrual	(420,000)	(520,000)
Agency commissions	243,000	211,000
Outside services	1,667,000	1,230,000
Postage and delivery expenses	176,000	167,000
Newsprint and printing expenses	205,000	199,000
Depreciation and amortization	66,000	75,000
Equipment maintenance and software	376,000	303,000
Credit card merchant discount fees	552,000	425,000
Rent expenses	70,000	69,000
Accounting and legal fees	256,000	273,000
Other general and administrative expenses	832,000	954,000
Operating Expenses	15,370,000	13,017,000
Income from operations	623,000	(716,000)
Other income (expense)
Dividends and interest income	1,569,000	1,069,000
Realized gains on sales of marketable securities	0	422,000
Net unrealized gains on marketable securities	14,690,000	24,025,000
Income before income taxes	15,740,000	23,927,000
Income tax provisions	(3,125,000)	(6,100,000)
Net income	$ 12,615,000	$ 17,827,000
Weighted average number of common shares outstanding - basic and diluted (in shares)	1,377,026	1,377,026
Basic and diluted net income per share (in dollars per share)	$ 9.16	$ 12.95
Comprehensive income	$ 12,615,000	$ 17,827,000
Margin Account [Member]
Other income (expense)
Interest expense on margin loans and others	(1,131,000)	(861,000)
Real Estate Bank Loan Secured by Logan Office [Member]
Other income (expense)
Interest expense on margin loans and others	(11,000)	(12,000)
Advertising [Member]
Revenues	2,087,000	1,990,000
Subscription and Circulation [Member]
Revenues	1,095,000	1,098,000
Advertising Service Fees and Other [Member]
Revenues	705,000	699,000
License and Maintenance [Member]
Revenues	6,557,000	4,395,000
Consulting Fees [Member]
Revenues	3,302,000	2,322,000
Service, Other [Member]
Revenues	$ 2,247,000	$ 1,797,000