Consolidated Balance Sheets - USD ($)	Sep. 30, 2020	Sep. 30, 2019
Current assets
Cash and cash equivalents	$ 26,922,000	$ 8,615,000
Restricted cash	2,041,000	2,015,000
Marketable securities	179,368,000	194,581,000
Accounts receivable, less allowance for doubtful accounts of $250,000 at September 30, 2020 and $200,000 at September 30, 2019	6,727,000	7,036,000
Inventories	36,000	40,000
Prepaid expenses and other current assets	613,000	508,000
Income tax receivable	601,000	153,000
Total current assets	216,308,000	212,948,000
Property, plant and equipment, at cost
Land, buildings and improvements	16,572,000	16,499,000
Furniture, office equipment and computer software	1,782,000	2,119,000
Machinery and equipment	1,524,000	1,750,000
Property, Plant and Equipment, Gross, Ending Balance	19,878,000	20,368,000
Less accumulated depreciation	(9,422,000)	(9,572,000)
Property, Plant and Equipment, Net, Ending Balance	10,456,000	10,796,000
Operating lease right-of-use assets	140,000	0
Deferred income taxes - Federal	11,137,000	12,596,000
Deferred income taxes - State	534,000	1,036,000
Assets, Total	238,575,000	237,376,000
Current liabilities
Accounts payable	3,926,000	4,520,000
Accrued liabilities	5,005,000	5,173,000
Note payable collateralized by real estate	133,000	126,000
Total current liabilities	27,990,000	30,668,000
Long term liabilities
Investment margin account borrowings	29,493,000	29,493,000
Note payable collateralized by real estate	1,576,000	1,709,000
Deferred maintenance agreements	450,000	335,000
Accrued liabilities	1,455,000	230,000
Deferred income taxes	35,870,000	37,241,000
Total long term liabilities	68,844,000	69,008,000
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 424,307 treasury shares,at September 30, 2020 and September 30, 2019	14,000	14,000
Additional paid-in capital	1,755,000	1,755,000
Retained earnings	139,972,000	135,931,000
Total shareholders' equity	141,741,000	137,700,000
Liabilities and Equity, Total	238,575,000	237,376,000
Subscription and Circulation [Member]
Current liabilities
Deferred revenue	2,899,000	3,195,000
Installation Contracts [Member]
Current liabilities
Deferred revenue	140,000	1,932,000
License and Maintenance [Member]
Current liabilities
Deferred revenue	$ 15,887,000	$ 15,722,000