Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2016	Sep. 30, 2016
Notes Payable, Noncurrent	$ 56.3	$ 57.3
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	13,336,508	13,336,508
Common stock, outstanding (in shares)	11,876,224	11,876,224
Treasury stock, shares (in shares)	1,460,284	1,460,284