Consolidated Statements of Cash Flows (USD $)	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities
Net income	$ 631,000us-gaap_NetIncomeLoss	$ 3,779,000us-gaap_NetIncomeLoss	$ 5,541,000us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	5,516,000us-gaap_DepreciationAndAmortization	2,441,000us-gaap_DepreciationAndAmortization	503,000us-gaap_DepreciationAndAmortization
Deferred income taxes	(2,039,000)	(493,000)	(261,000)
Discount earned on bonds	(3,000)	(2,000)	(4,000)
Other-than-temporary impairment losses on investments		1,719,000	2,855,000
(Increase) decrease in current assets (net of acquisitions)
Accounts receivable, net	(2,252,000)	1,691,000	886,000
Inventories	5,000us-gaap_IncreaseDecreaseInInventories	(13,000)us-gaap_IncreaseDecreaseInInventories	1,000us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	975,000	252,000	(9,000)
Income tax receivable	(1,746,000)	(109,000)
Increase (decrease) in liabilities (net of acquisitions)
Accounts payable	85,000	(155,000)	(235,000)
Accrued liabilities	(1,851,000)	(3,016,000)	(1,415,000)
Income taxes	3,244,000		(952,000)
Net cash provided by operating activities	4,507,000	5,672,000	6,959,000
Cash flows from investing activities
Maturities and sales of U.S. Treasury Bills		(800,000)	(19,400,000)
Purchases of U.S. Treasury Bills			(7,099,000)
Purchases of marketable securities			(20,961,000)
Purchases of property, plant and equipment	(435,000)	(280,000)	(372,000)
Net cash used for investing activities	(435,000)	(24,812,000)	(9,032,000)
Cash flows from financing activities
Investment margin account borrowing		29,493,000us-gaap_ProceedsFromOtherDebt
		29,493,000
Increase (decrease) in cash and cash equivalents	4,072,000	10,353,000	(2,073,000)
Cash and cash equivalents
Beginning of year	11,338,000	985,000	3,058,000
End of year	15,410,000	11,338,000	985,000
Interest paid during year	230,000us-gaap_InterestPaid	97,000us-gaap_InterestPaid	186,000us-gaap_InterestPaid
Income taxes paid during year	28,000us-gaap_IncomeTaxesPaid	1,354,000us-gaap_IncomeTaxesPaid	3,573,000us-gaap_IncomeTaxesPaid
Subscription Arrangement [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscription	(153,000)	(115,000)	(170,000)
Deferred Installation Contracts [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscription	2,017,000	(593,000)
Deferred Maintenance Agreement [Member]
Increase (decrease) in liabilities (net of acquisitions)
Deferred subscription	78,000	286,000	219,000
ISD Corporation [Member]
Cash flows from investing activities
Acquisition of New Dawn Technologies, Inc. (net of cash acquired)		(13,454,000)
New Dawn [Member]
Cash flows from investing activities
Acquisition of New Dawn Technologies, Inc. (net of cash acquired)		$ (11,878,000)

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

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