Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2018	Sep. 30, 2017
ASSETS
Cash and cash equivalents	$ 7,224,000	$ 3,384,000
Marketable securities at fair value, including common stocks of $217,803,000 at March 31, 2018, and common stocks of $220,973,000 and bonds of $8,292,000 at September 30, 2017	217,803,000	229,265,000
Accounts receivable, less allowance for doubtful accounts of $200,000 at March 31, 2018 and September 30, 2017	4,239,000	5,358,000
Inventories	46,000	40,000
Prepaid expenses and other current assets	612,000	798,000
Income tax receivable	854,000	909,000
Total current assets	230,778,000	239,754,000
Property, plant and equipment, at cost
Land, buildings and improvements	16,409,000	16,396,000
Furniture, office equipment and computer software	2,752,000	2,724,000
Machinery and equipment	1,818,000	1,799,000
	20,979,000	20,919,000
Less accumulated depreciation	(9,584,000)	(9,292,000)
	11,395,000	11,627,000
Intangibles, net	1,248,000	3,058,000
Goodwill	13,400,000	13,400,000
Deferred income taxes - Federal	7,622,000	10,652,000
Deferred income taxes - State	2,299,000	2,217,000
	266,742,000	280,708,000
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	2,898,000	3,049,000
Accrued liabilities	2,932,000	3,112,000
Note payable collateralized by real estate	118,000	115,000
Total current liabilities	22,405,000	24,074,000
Long term liabilities
Investment margin account borrowings	29,493,000	29,493,000
Note payable collateralized by real estate	1,896,000	1,956,000
Deferred maintenance agreements	492,000	759,000
Accrued liabilities	135,000	135,000
Deferred income taxes	42,369,000	64,550,000
Total long term liabilities	74,385,000	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 March 31, 2018 and September 30, 2017	14,000	14,000
Additional paid-in capital	1,755,000	1,755,000
Retained earnings	51,667,000	57,150,000
Accumulated other comprehensive income	116,516,000	100,822,000
Total shareholders' equity	169,952,000	159,741,000
	266,742,000	280,708,000
Subscription Arrangement [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	3,117,000	3,284,000
Deferred Installation Contracts [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	4,342,000	5,072,000
Software Service, Support and Maintenance Arrangement [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	$ 8,998,000	$ 9,442,000