Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016
Goodwill and other intangible assets, accumulated amortization	$ 386	$ 380
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	22,510,279	22,510,279
Common stock, shares outstanding (in shares)	22,454,476	22,452,609
Treasury stock, shares (in shares)	55,803	57,670