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Note 18 - Share Repurchases	12 Months Ended
	Sep. 30, 2017
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	( 1 8 ) Share Repurchases On November   18, 2008, our Board of Directors approved a share repurchase authorization to buy back up to $25.0  million of our outstanding common stock (the “Authorization”). Repurchases may be made from time to time in the open market or in privately negotiated transactions subject to market conditions, applicable legal requirements and other factors. We are not obligated to acquire any particular amount of common stock and may commence or suspend the program at any time at our discretion without prior notice. The Authorization continues in effect until terminated by the Board of Directors. As of September 30, 2017, there was $24.8 million remaining available for future share repurchases under the Authorization. There were no share repurchases during 2017, 2016 and 2015.

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The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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