Note 7 - Leases (Details Textual) $ in Thousands  | 
12 Months Ended | ||
|---|---|---|---|
| 
 Dec. 31, 2022  
USD ($) 
 | 
 Dec. 31, 2021  
USD ($) 
 | 
 Dec. 31, 2020  
USD ($) 
 | 
|
| Lessee, Operating Lease, Renewal Term (Year) | 10 years | ||
| Number of Operating Lease Facilities Impaired | 2 | ||
| Asset Impairment Charges, Total | $ 0 | $ 1,211 | $ 127,872 | 
| Minimum [Member] | |||
| Lessee, Operating Lease, Term of Contract (Year) | 1 year | ||
| Maximum [Member] | |||
| Lessee, Operating Lease, Term of Contract (Year) | 14 years | ||
| X | ||||||||||
- Definition Represents number of operating lease facilities impaired. No definition available. 
  | 
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  | 
| X | ||||||||||
- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
  | 
| X | ||||||||||
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
  | 
| X | ||||||||||
- Details 
  | 
| X | ||||||||||
- Details 
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