XML 48 R37.htm IDEA: XBRL DOCUMENT v3.21.1
Note 16 - Fair Value Measurement (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  March 31, 2021 
  Fair Value Measurement Using  Assets (Liabilities) 
  Level 1  Level 2  Level 3  at Fair value 
                 
Derivative instrument asset, net $-  $2,875  $-  $2,875 
                 
Total assets, net $-  $2,875  $-  $2,875 
  December 31, 2020 
  Fair Value Measurement Using  Assets (Liabilities) 
  Level 1  Level 2  Level 3  at Fair value 
                 
Derivative instrument asset, net $-  $3,647  $-  $3,647 
                 
Total assets, net $-  $3,647  $-  $3,647