Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands |
Sep. 30, 2019 |
Sep. 30, 2018 |
---|---|---|
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) | 2,798,475 | 84,005 |
Common stock, shares outstanding (in shares) | 2,798,475 | 84,005 |
Series C Convertible Preferred Stock [Member] | ||
Preferred stock, shares authorized (in shares) | 11,000 | |
Preferred stock, shares outstanding (in shares) | 441 | |
Preferred stock, shares issued (in shares) | 441 | |
Series A Convertible Preferred Stock [Member] | ||
Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 |
Preferred stock, shares outstanding (in shares) | 262,310 | 262,364 |
Preferred stock, shares issued (in shares) | 264,000 | 264,000 |
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
Preferred stock, liquidation preference | $ 2,623 | $ 2,623 |