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Note 8 - Income Taxes (Detail) (USD $)	3 Months Ended		6 Months Ended
Note 8 - Income Taxes (Detail) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 1,661,000	$ 2,774,000	$ 2,925,000	$ 5,360,000
Income Tax Expense (Benefit)	$ 510,000	$ 730,000	$ 940,000	$ 1,610,000
Effective Income Tax Rate, Continuing Operations			32.00%	30.00%
Amortization Period For Purchased Software, Customer Relationhips And Goodwill Tax Basis [Member]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			15 years

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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