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Note 3 - Restricted Cash (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Cash and Cash Equivalents [Table Text Block]
  June 30, 2022  December 31, 2021 
Cash and cash equivalents $11,545  $13,473 
Restricted cash included in cash, cash equivalents and restricted cash  857   - 
Total as presented in the consolidated statement of cash flows $12,402  $13,473