Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities
Net income (loss)	$ 157,000	$ (81,000)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operations
Depreciation and amortization	4,204,000	4,288,000
Deferred income taxes	(3,347,000)	(512,000)
Discounts earned on bonds	(2,000)	(2,000)
Changes in operating assets and liabilities
Accounts receivable, net	(942,000)	(57,000)
Inventories	(8,000)	1,000
Prepaid expenses and other assets	(133,000)	70,000
Income tax receivable	(66,000)	97,000
Accounts payable	270,000	(1,553,000)
Accrued liabilities	(313,000)	137,000
Income taxes	(2,723,000)	(186,000)
Net cash (used in) provided by operating activities	(3,430,000)	45,000
Cash flows from investing activities
Purchases of marketable securities	(5,013,000)	(3,838,000)
Purchases of property, plant and equipment, including the Logan, Utah office building in fiscal 2016	(251,000)	(3,670,000)
Net cash used in investing activities	(5,264,000)	(7,508,000)
Cash flows from financing activities
Note payable collateralized by real estate		2,234,000
Payment of real estate loan principal	(82,000)	(26,000)
Net cash (used in) provided by financing activities	(82,000)	2,208,000
Decrease in cash and cash equivalents	(8,776,000)	(5,255,000)
Beginning of period	11,411,000	15,617,000
End of period	2,635,000	10,362,000
Interest paid during period	359,000	254,000
Net income taxes paid (refunded) during period	1,000	(11,000)
Subscription Arrangement [Member]
Changes in operating assets and liabilities
Deferred revenue arrangements	(501,000)	91,000
Deferred Maintenance Agreement [Member]
Changes in operating assets and liabilities
Deferred revenue arrangements	817,000	(1,046,000)
Deferred Installation Contracts [Member]
Changes in operating assets and liabilities
Deferred revenue arrangements	$ (843,000)	$ (1,202,000)