CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2019	Sep. 30, 2018
Statement of Financial Position [Abstract]
Common stock, par value (usd per share)	$ 1	$ 1
Common stock, shares authorized (shares)	250,000,000	250,000,000
Common stock, shares outstanding (shares)	109,254,724	108,951,596