Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2025	Sep. 30, 2024
Current assets
Cash and cash equivalents	$ 18,705	$ 12,986
Restricted cash	2,249	2,191
Non-qualified deferred compensation plan – trust account asset value	1,158	748
Marketable securities at fair value	443,011	358,691
Accounts receivable, less allowance for credit losses	19,566	19,219
Inventories	37	15
Prepaid expenses and other current assets	915	612
Derivative asset	75	0
Income tax receivable	0	33
Total current assets	485,716	394,495
Property, plant and equipment, at cost
Land, buildings and improvements	16,418	16,418
Furniture, office equipment and computer software	1,723	1,723
Machinery and equipment	1,521	1,521
Property, Plant and Equipment, Gross	19,662	19,662
Less accumulated depreciation	(10,716)	(10,520)
Total property, plant and equipment, net	8,946	9,142
Operating lease right-of-use assets	59	126
Total assets	494,721	403,763
Current liabilities
Accounts payable	8,304	6,049
Accrued liabilities	8,870	8,517
Note payable collateralized by real estate	168	164
Income taxes	1,615	0
Total current liabilities	39,121	38,443
Long-term liabilities
Investment margin account borrowings	25,000	27,500
Note payable collateralized by real estate	829	956
Deferred maintenance agreements	389	883
Accrued liabilities	3,675	3,772
Accrued non-qualified deferred compensation	1,398	784
Deferred income taxes	75,427	52,641
Total long-term liabilities	106,718	86,536
Commitments and Contingencies
Shareholders' equity
Preferred stock, $.01 par value, 5,000,000 shares authorized and no shares issued	0	0
Common stock, $.01 par value, 5,000,000 shares authorized; 1,805,053 shares issued, including 427,627 treasury shares At June 30, 2025 and September 30, 2024	14	14
Additional paid-in capital	2,069	1,957
Retained earnings	346,799	276,813
Total shareholders' equity	348,882	278,784
Total liabilities and shareholders’ equity	494,721	403,763
Subscription and Circulation [Member]
Current liabilities
Contract with Customer, Liability, Current	2,583	2,558
Professional Fees [Member]
Current liabilities
Contract with Customer, Liability, Current	2,094	2,031
License and Maintenance [Member]
Current liabilities
Contract with Customer, Liability, Current	$ 15,487	$ 19,124