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Note 9 - Net Loss Per Share of Common Stock (Tables) | 6 Months Ended
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Jun. 30, 2019
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Six months ended June 3 0 , |  |  | Three months ended June 3 0 , |
|  | 201 9 (unaudited) |  |  | 201 8 (unaudited) |  |  | 201 9 (unaudited) |  |  | 201 8 (unaudited) |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (3,809 | ) |  | $ | (4,272 | ) |  | $ | (1,512 | ) |  | $ | (2,090 | )
Denominator (in thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted-average common stock outstanding |  |  | 21,927 |  |  |  | 22,139 |  |  |  | 21,936 |  |  |  | 22,129 |
Effect of stock -based awards |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Diluted weighted average common stock outstanding |  |  | 21,927 |  |  |  | 22,139 |  |  |  | 21,936 |  |  |  | 22,129 |
Basic net loss per share |  | $ | (0.17 | ) |  | $ | (0.19 | ) |  | $ | (0.07 | ) |  | $ | (0.09 | )
Diluted net loss per share |  | $ | (0.17 | ) |  | $ | (0.19 | ) |  | $ | (0.07 | ) |  | $ | (0.09 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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