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Note 12 - Net Loss Per Share (Tables) | 6 Months Ended
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Mar. 31, 2016
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
(in thousands, except per share data) |  | March 31, |  |  | March 31, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Net loss |  | $ | (1,005 | ) |  | $ | (2,073 | ) |  | $ | (2,353 | ) |  | $ | (4,183 | )
Accrued dividends on convertible preferred stock |  |  | (32 | ) |  |  | (30 | ) |  |  | (64 | ) |  |  | (51 | )
Net loss applicable to common shareholders |  | $ | (1,037 | ) |  | $ | (2,103 | ) |  | $ | (2,417 | ) |  | $ | (4,234 | )
Weighted average common shares outstanding - basic |  |  | 5,268 |  |  |  | 4,272 |  |  |  | 5,216 |  |  |  | 4,307 |
Effect of dilutive securities |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Weighted average common shares outstanding - diluted |  |  | 5,268 |  |  |  | 4,272 |  |  |  | 5,216 |  |  |  | 4,307 |
Net loss per share attributable to common shareholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted |  | $ | (0.20 | ) |  | $ | (0.49 | ) |  | $ | (0.46 | ) |  | $ | (0.98 | )

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