Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Dec. 31, 2018	Sep. 30, 2018
Preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, authorized (in shares)	50,000,000	50,000,000
Common stock, issued (in shares)	32,589,321	33,176,146
Common stock, outstanding (in shares)	32,589,321	33,176,146

Face amount or stated value per share of common stock.

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