Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	222,822	221,092
Preferred stock, shares outstanding (in shares)	222,822	221,092
Preferred stock, liquidation preference	$ 2,296	$ 2,296
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)	20,783,747	18,637,709
Common stock, shares outstanding (in shares)	20,783,747	18,637,709