Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues
Revenues	$ 23,406,000	$ 17,494,000	$ 59,286,000	$ 50,058,000
Costs and expenses
Salaries and employee benefits	14,778,000	11,997,000	39,520,000	35,183,000
Stock-based compensation	23,000	0	112,000	0
Increase (decrease) to the long-term supplemental compensation accrual	575,000	(580,000)	(60,000)	(1,410,000)
Agency commissions	385,000	315,000	1,069,000	857,000
Outside services	1,710,000	1,798,000	5,322,000	5,220,000
Postage and delivery expenses	192,000	189,000	576,000	548,000
Newsprint and printing expenses	149,000	150,000	504,000	515,000
Depreciation and amortization	64,000	67,000	196,000	200,000
Equipment maintenance and software	290,000	418,000	1,333,000	1,130,000
Credit card merchant discount fees	599,000	558,000	1,692,000	1,668,000
Rent expenses	96,000	71,000	253,000	212,000
Accounting and legal fees	443,000	328,000	1,030,000	739,000
Other general and administrative expenses	878,000	1,093,000	2,810,000	2,850,000
Total costs and expenses	20,182,000	16,404,000	54,357,000	47,712,000
Income from operations	3,224,000	1,090,000	4,929,000	2,346,000
Other income (expense)
Dividends and interest income	3,796,000	2,999,000	6,158,000	5,857,000
Rental income	15,000	0	24,000	0
Decrease in fair value of derivative asset	(13,000)	0	75,000	0
Net unrealized gains on non-qualified compensation plan	20,000	173,000	(33,000)	173,000
Net realized and unrealized gains on marketable securities	11,521,000	28,018,000	84,320,000	62,472,000
Income before income taxes	18,231,000	31,835,000	94,396,000	68,195,000
Income tax provision	(3,810,000)	(8,480,000)	(24,410,000)	(16,810,000)
Net income	$ 14,421,000	$ 23,355,000	$ 69,986,000	$ 51,385,000
Weighted average number of common shares outstanding - basic and diluted (in shares)	1,377,426	1,377,026	1,377,321	1,377,026
Basic and diluted net income per share (in dollars per share)	$ 10.47	$ 16.96	$ 50.81	$ 37.32
Comprehensive income	$ 14,421,000	$ 23,355,000	$ 69,986,000	$ 51,385,000
Margin Account [Member]
Other income (expense)
Interest expense on margin loans and others	(323,000)	(435,000)	(1,050,000)	(2,622,000)
Real Estate Bank Loan Secured by Logan Office [Member]
Other income (expense)
Interest expense on margin loans and others	(9,000)	(10,000)	(27,000)	(31,000)
Advertising [Member]
Revenues
Revenues	2,798,000	2,536,000	7,642,000	6,939,000
Subscription and Circulation [Member]
Revenues
Revenues	1,069,000	1,089,000	3,196,000	3,283,000
Advertising Service Fees and Other [Member]
Revenues
Revenues	1,014,000	802,000	2,514,000	2,204,000
License and Maintenance [Member]
Revenues
Revenues	7,964,000	7,161,000	22,990,000	20,572,000
Consulting Fees [Member]
Revenues
Revenues	6,529,000	3,438,000	11,792,000	9,939,000
Service, Other [Member]
Revenues
Revenues	$ 4,032,000	$ 2,468,000	$ 11,152,000	$ 7,121,000