Note 6 - Lessee Leases: Schedule of other information about lease amounts recognized in consolidated financial statements (Details)  | 
Dec. 31, 2020  | 
Dec. 31, 2019  | 
|---|---|---|
| Details | ||
| Weighted-average remaining lease term –operating leases | 11 months 5 days | 1 year 8 months 23 days | 
| Weighted-average remaining lease term –finance leases | 3 years 4 months 28 days | 3 years 3 months | 
| Weighted-average discount rate –operating leases | 10.10% | 10.20% | 
| Weighted-average discount rate –finance leases | 8.30% | 9.00% | 
| X | ||||||||||
- Definition Represents the Weighted-average discount rate - finance leases, during the indicated time period. No definition available. 
  | 
| X | ||||||||||
- Definition Represents the Weighted-average discount rate - operating leases, during the indicated time period. No definition available. 
  | 
| X | ||||||||||
- Definition Represents the Weighted-average remaining lease term - finance leases, during the indicated time period. No definition available. 
  | 
| X | ||||||||||
- Definition Represents the Weighted-average remaining lease term - operating leases, during the indicated time period. No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
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