Consolidated Statements of (Loss) Income and Comprehensive (Loss) Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues
Revenue from Contract with Customer, Including Assessed Tax	$ 12,552,000	$ 13,562,000	$ 34,797,000	$ 37,952,000
Costs and expenses
Salaries and employee benefits	9,421,000	8,780,000	26,745,000	25,818,000
Increase to the long-term supplemental compensation accrual	1,985,000	655,000	(65,000)	1,410,000
Outside services	1,074,000	794,000	2,912,000	2,236,000
Postage and delivery expenses	165,000	160,000	492,000	490,000
Newsprint and printing expenses	174,000	162,000	529,000	469,000
Depreciation and amortization	73,000	114,000	301,000	344,000
Equipment maintenance and software	263,000	298,000	881,000	946,000
Credit card merchant discount fees	429,000	462,000	1,249,000	1,397,000
Rent expenses	64,000	66,000	187,000	228,000
Accounting and legal fees	206,000	252,000	748,000	746,000
Other general and administrative expenses	801,000	495,000	2,492,000	1,554,000
Total operating expenses	14,655,000	12,238,000	36,471,000	35,638,000
(Loss) income from operations	(2,103,000)	1,324,000	(1,674,000)	2,314,000
Other income (expense)
Dividends and interest income	1,263,000	776,000	4,251,000	2,063,000
Gains on sale of land	272,000		272,000
Other income		69,000		69,000
Net unrealized (losses) gains on marketable securities	(12,666,000)	55,686,000	(57,075,000)	131,754,000
(Loss) income before income taxes	(13,527,000)	57,773,000	(40,532,000)	154,434,000
Income tax benefits (provisions)	3,665,000	(15,200,000)	9,735,000	(40,115,000)
Net (loss) income	$ (9,862,000)	$ 42,573,000	$ (30,797,000)	$ 114,319,000
Weighted average number of common shares outstanding - basic and diluted (in shares)	1,380,133	1,380,746	1,380,542	1,380,746
Basic and diluted net (loss) income per share (in dollars per share)	$ (7.15)	$ 30.83	$ (22.31)	$ 82.80
Comprehensive (loss) income	$ (9,862,000)	$ 42,573,000	$ (30,797,000)	$ 114,319,000
Realized gains on sales of marketable securities			14,249,000	18,478,000
Net unrealized losses (gains) on marketable securities	12,666,000	(55,686,000)	57,075,000	(131,754,000)
Margin Account [Member]
Other income (expense)
Interest expense on debt	(281,000)	(68,000)	(517,000)	(196,000)
Real Estate Bank Loan Secured by Logan Office [Member]
Costs and expenses
Increase to the long-term supplemental compensation accrual	1,985,000	655,000
Other income (expense)
Interest expense on debt	(12,000)	(14,000)	(38,000)	(48,000)
Advertising [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	1,989,000	2,195,000	5,679,000	5,649,000
Subscription and Circulation [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	1,097,000	1,126,000	3,279,000	3,458,000
Advertising Service Fees and Other [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	787,000	762,000	2,200,000	1,964,000
License and Maintenance [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	4,633,000	5,602,000	13,721,000	16,990,000
Consulting Fees [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	2,267,000	2,100,000	4,697,000	4,649,000
Service, Other [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	$ 1,779,000	$ 1,777,000	$ 5,221,000	$ 5,242,000