Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2017	Sep. 30, 2016
ASSETS
Cash and cash equivalents	$ 4,050,000	$ 11,411,000
Marketable securities at fair value, including common stocks of $195,894,000 and bonds of $7,884,000 at March 31, 2017 and common stocks of $158,462,000 and bonds of $8,172,000 at September 30, 2016	203,778,000	166,634,000
Accounts receivable, less allowance for doubtful accounts of $200,000 at March 31, 2017 and September 30, 2016	5,285,000	4,707,000
Inventories	50,000	41,000
Prepaid expenses and other current assets	745,000	800,000
Income tax receivable	650,000	890,000
Total current assets	214,558,000	184,483,000
Land, buildings and improvements	16,404,000	16,306,000
Furniture, office equipment and computer software	2,777,000	2,743,000
Machinery and equipment	1,799,000	1,864,000
	20,980,000	20,913,000
Less accumulated depreciation	(9,056,000)	(8,849,000)
	11,924,000	12,064,000
Intangibles, net	5,506,000	7,953,000
Goodwill	13,400,000	13,400,000
Deferred income taxes, net	9,771,000	7,546,000
	255,159,000	225,446,000
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	3,158,000	2,644,000
Accrued liabilities	2,545,000	2,583,000
Note payable collateralized by real estate	113,000	110,000
Deferred income taxes, net	54,084,000	41,501,000
Total current liabilities	76,929,000	64,860,000
Investment margin account borrowings	29,493,000	29,493,000
Note payable collateralized by real estate	2,014,000	2,071,000
Deferred maintenance agreements	143,000	149,000
Income tax payable		2,723,000
Accrued interest and penalty for uncertain and unrecognized tax benefits		745,000
Accrued liabilities	72,000	62,000
Total long term liabilities	31,722,000	35,243,000
Commitments and contingencies (Note 10)
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, 2017 and September 30, 2016	14,000	14,000
Additional paid-in capital	1,755,000	1,755,000
Retained earnings	59,576,000	58,068,000
Accumulated other comprehensive income	85,163,000	65,506,000
Total shareholders' equity	146,508,000	125,343,000
	255,159,000	225,446,000
Subscription Arrangement [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	3,280,000	3,402,000
Deferred Installation Contracts [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	5,148,000	6,536,000
Deferred Maintenance Agreement [Member]
LIABILITIES AND SHAREHOLDERS' EQUITY
Deferred revenue	$ 8,601,000	$ 8,084,000