Note 14 - Common stock warrants: Schedule of Series B and Series D common stock warrants (Tables)  | 
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2019  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tables/Schedules | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Series B and Series D common stock warrants | 
 
 
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| X | ||||||||||
- Definition Represents the textual narrative disclosure of Schedule of Series B and Series D common stock warrants, during the indicated time period. No definition available. 
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| X | ||||||||||
- References No definition available. 
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