Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenues
Revenue from Contract with Customer, Including Assessed Tax	$ 10,420,000	$ 11,677,000
Costs and expenses
Salaries and employee benefits	7,892,000	8,887,000
Outside services	723,000	1,214,000
Postage and delivery expenses	169,000	210,000
Newsprint and printing expenses	154,000	178,000
Depreciation and amortization	115,000	128,000
Equipment maintenance and software	253,000	322,000
Credit card merchant discount fees	450,000	382,000
Rent expenses	72,000	172,000
Accounting and legal fees	350,000	256,000
Other general and administrative expenses	557,000	1,446,000
Total operating expenses	10,735,000	13,195,000
Loss from operations	(315,000)	(1,518,000)
Other income (expense)
Dividends and interest income	638,000	1,680,000
Other income	0	3,000
Net unrealized gains on marketable securities	81,212,000	19,531,000
Interest expense on debt	(64,000)
Income before income taxes	81,450,000	19,490,000
Provision for income taxes	(22,180,000)	(5,280,000)
Net income	$ 59,270,000	$ 14,210,000
Weighted average number of common shares outstanding - basic and diluted (in shares)	1,380,746	1,380,746
Basic and diluted net income per share (in dollars per share)	$ 42.93	$ 10.29
Comprehensive income	$ 59,270,000	$ 14,210,000
Real Estate Bank Loan Secured by Logan Office [Member]
Other income (expense)
Interest expense on debt	(21,000)	(22,000)
Margin Account [Member]
Other income (expense)
Interest expense on debt	(64,000)	(184,000)
Advertising [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	1,692,000	2,126,000
Subscription and Circulation [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	1,203,000	1,312,000
Advertising Service Fees and Other [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	634,000	694,000
License and Maintenance [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	5,033,000	5,210,000
Consulting Fees [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	244,000	689,000
Service, Other [Member]
Revenues
Revenue from Contract with Customer, Including Assessed Tax	$ 1,614,000	$ 1,646,000