Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Subscription Arrangement [Member]
Increase (decrease) in liabilities
Deferred Revenue Arrangements	$ 91,000	$ 154,000
Deferred Maintenance Agreement [Member]
Increase (decrease) in liabilities
Deferred Revenue Arrangements	(1,046,000)	(2,367,000)
Deferred Installation Contracts [Member]
Increase (decrease) in liabilities
Deferred Revenue Arrangements	(1,202,000)	(313,000)
Net (loss) income	(81,000)	970,000
Depreciation and amortization	4,288,000	4,093,000
Gains on sales of marketable securities		(4,000)
Deferred income taxes	(512,000)	(735,000)
Discounts earned on bonds	(2,000)	(2,000)
Accounts receivable, net	(57,000)	1,912,000
Inventories	1,000	(12,000)
Prepaid expenses and other assets	70,000	284,000
Income tax receivable	97,000	639,000
Accounts payable	(1,553,000)	(230,000)
Accrued liabilities	137,000	325,000
Income taxes	(186,000)	(185,000)
Net cash provided by operating activities	45,000	4,529,000
Cash flows from investing activities
Sales of marketable securities		4,044,000
Purchases of marketable securities	(3,838,000)	(10,977,000)
Purchases of property, plant and equipment, including the Logan Utah office building	(3,670,000)	(433,000)
Net cash used for investing activities	(7,508,000)	(7,366,000)
Cash flows from financing activities
Note payable collateralized by real estate	2,234,000
Payment of loan principal	(26,000)
Net cash provided by financing activities	2,208,000
Decrease in cash and cash equivalents	(5,255,000)	(2,837,000)
Cash and cash equivalents
Beginning of period	15,617,000	15,410,000
End of period	10,362,000	12,573,000
Interest paid during period	254,000	168,000
Net income taxes refunded during period	$ (11,000)	$ (547,000)