Note 3 - Income Taxes (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Note 3 - Income Taxes (Details) [Line Items]
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 4,569,000	$ 7,901,000
Income Tax Expense (Benefit)	790,000	2,360,000
Increase (Decrease) in Deferred Income Taxes			$ (500,000)
Effective Income Tax Rate Reconciliation, Percent	17.30%	29.80%
ISD [Member] | Purchased Software and Customer Relationship [Member]
Note 3 - Income Taxes (Details) [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	15 years