Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Subscription Arrangement [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscriptions	$ 154,000	$ (389,000)
Deferred Maintenance Agreement [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscriptions	(2,367,000)	399,000
Deferred Installation Contracts [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscriptions	(313,000)	1,533,000
Net income (loss)	970,000	(549,000)
Depreciation and amortization	4,093,000	4,134,000
Gains on sales of marketable securities	(4,000)
Deferred income taxes	(735,000)	(1,956,000)
Discounts earned on bonds	(2,000)	(2,000)
Accounts receivable, net	1,912,000	(536,000)
Inventories	(12,000)	8,000
Prepaid expenses and other assets	284,000	622,000
Income tax receivable	639,000	(1,113,000)
Accounts payable	(230,000)	147,000
Accrued liabilities	325,000	(1,501,000)
Income taxes	(185,000)	3,018,000
Net cash provided by operating activities	4,529,000	3,815,000
Cash flows from investing activities
Sales of marketable securities	4,044,000
Purchases of marketable securities	(10,977,000)
Purchases of property, plant and equipment	(433,000)	(403,000)
Net cash used in investing activities	(7,366,000)	(403,000)
(Decrease) increase in cash and cash equivalents	(2,837,000)	3,412,000
Cash and cash equivalents
Beginning of period	15,410,000	11,338,000
End of period	12,573,000	14,750,000
Interest paid during period	168,000	168,000
Net income taxes (refunded) paid during period	$ (547,000)	$ 20,000