Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Dec. 31, 2017	Sep. 30, 2017
Current assets
Cash and cash equivalents	$ 2,508,000	$ 3,384,000
Marketable securities at fair value, including common stocks of $236,387,000 and bonds of $8,547,000 at December 31, 2017 and common stocks of $220,973,000 and bonds of $8,292,000 at September 30, 2017	244,934,000	229,265,000
Accounts receivable, less allowance for doubtful accounts of $200,000 at December 31, 2017 and September 30, 2017	4,192,000	5,358,000
Inventories	40,000	40,000
Prepaid expenses and other current assets	641,000	798,000
Income tax receivable	987,000	909,000
Total current assets	253,302,000	239,754,000
Property, plant and equipment, at cost
Land, buildings and improvements	16,396,000	16,396,000
Furniture, office equipment and computer software	2,724,000	2,724,000
Machinery and equipment	1,818,000	1,799,000
	20,938,000	20,919,000
Less accumulated depreciation	(9,433,000)	(9,292,000)
	11,505,000	11,627,000
Intangibles, net	1,996,000	3,058,000
Goodwill	13,400,000	13,400,000
Deferred income taxes - Federal	7,436,000	10,652,000
Deferred income taxes - States	2,251,000	2,217,000
	289,890,000	280,708,000
Current liabilities
Accounts payable	2,951,000	3,049,000
Accrued liabilities	2,411,000	3,112,000
Note payable collateralized by real estate	117,000	115,000
Total current liabilities	23,018,000	24,074,000
Long term liabilities
Investment margin account borrowings	29,493,000	29,493,000
Note payable collateralized by real estate	1,926,000	1,956,000
Deferred maintenance agreements	580,000	759,000
Accrued liabilities	135,000	135,000
Deferred income taxes, net	48,140,000	64,550,000
Total long term liabilities	80,274,000	96,893,000
Commitments and contingencies (Notes 10 and 11)
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 December 31, 2017 and September 30, 2017	14,000	14,000
Additional paid-in capital	1,755,000	1,755,000
Retained earnings	71,889,000	57,150,000
Accumulated other comprehensive income	112,940,000	100,822,000
Total shareholders' equity	186,598,000	159,741,000
	289,890,000	280,708,000
Subscription Arrangement [Member]
Current liabilities
Deferred revenue	3,135,000	3,284,000
Deferred Installation Contracts [Member]
Current liabilities
Deferred revenue	4,364,000	5,072,000
Software Service, Support and Maintenance Arrangement [Member]
Current liabilities
Deferred revenue	$ 10,040,000	$ 9,442,000