Note 5 - Income Taxes (Details) - Summary of deductions for intangible assets and goodwill: (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Summary of deductions for intangible assets and goodwill: [Abstract]
2013	$ 4,700
2014	4,800
2015	5,100
2016	5,300
2017	5,600
2018 and thereafter	38,200
	$ 63,700

Deductions For Intangible Assets and Goodwill Balances Over Next Twelve Months

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Deductions For Intangible Assets and Goodwill Balances, Tax Benefit

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Deductions For Intangible Assets and Goodwill Balances, Thereafter

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Deductions For Intangible Assets and Goodwill Balances, Year Five

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Deductions For Intangible Assets and Goodwill Balances, Year Four

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Deductions For Intangible Assets and Goodwill Balances, Year Three

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Deductions For Intangible Assets and Goodwill Balances, Two Years

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