Consolidated Balance Sheets - USD ($)	Sep. 30, 2023	Sep. 30, 2022
Current assets
Cash and cash equivalents	$ 21,038,000	$ 13,423,000
Restricted cash	2,100,000	2,045,000
Marketable securities at fair value -- common stocks	303,128,000	275,529,000
Accounts receivable, less allowance for doubtful accounts of $250,000 at September 30, 2023 and 2022	18,687,000	16,931,000
Inventories	72,000	56,000
Prepaid Expense and Other Assets, Current	380,000	451,000
Income tax receivable		1,019,000
Total current assets	345,405,000	309,454,000
Property, plant and equipment, at cost
Land, buildings and improvements	16,400,000	16,330,000
Furniture, office equipment and computer software	1,703,000	1,688,000
Machinery and equipment	1,521,000	1,521,000
Property, Plant and Equipment, Gross	19,624,000	19,539,000
Less accumulated depreciation	(10,264,000)	(9,986,000)
Property, Plant and Equipment, Net	9,360,000	9,553,000
Operating lease right-of-use assets	95,000	104,000
Assets	354,860,000	319,111,000
Current liabilities
Accounts payable	6,643,000	5,062,000
Accrued liabilities	8,789,000	7,066,000
Income tax payable	1,069,000
Note payable collateralized by real estate	158,000	146,000
Total current liabilities	42,198,000	33,619,000
Long term liabilities
Investment margin account borrowings	75,000,000	75,000,000
Note payable collateralized by real estate	1,120,000	1,285,000
Deferred maintenance agreements and others	1,000,000	370,000
Accrued liabilities	4,474,000	4,547,000
Deferred income taxes	30,599,000	25,273,000
Total long-term liabilities	112,193,000	106,475,000
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 428,027 treasury shares, at September 30, 2023 and 2022	14,000	14,000
Additional paid-in capital	1,755,000	1,755,000
Retained earnings	198,700,000	177,248,000
Total shareholders' equity	200,469,000	179,017,000
Liabilities and Equity	354,860,000	319,111,000
Subscription and Circulation [Member]
Current liabilities
Deferred revenue	2,678,000	2,679,000
Professional Fees [Member]
Current liabilities
Deferred revenue	5,828,000	6,394,000
License and Maintenance [Member]
Current liabilities
Deferred revenue	$ 17,033,000	$ 12,272,000