Note 10 - Shareholders' Equity (Tables) |
6 Months Ended | ||||||||||||||||||||||||||||||
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Jun. 30, 2019 | |||||||||||||||||||||||||||||||
| Notes Tables | |||||||||||||||||||||||||||||||
| Common Stock Reserved for Future Issuance [Table Text Block] |
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| X | ||||||||||
- Definition A tabular disclosure of common stock reserved for future issuance. No definition available.
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| X | ||||||||||
- References No definition available.
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