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Note 13 - Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
 

Fair Value Measurement as of December 31, 2021

 
 

Balance Sheet

Location

 Total,   (Level 1)  

 

 

 

(Level 2)
  (Level 3) 

Assets

                 

Interest rate swap contracts, current portion

Derivatives, asset current portion $540,753   -  $540,753   - 
Liabilities                 
Interest rate swap contracts, long-term portionDerivatives, asset long-term portion $952,666   -  $952,666   - 
 

Fair Value Measurement as of June 30, 2022

 
 

Balance Sheet

Location

 Total,   (Level 1)  

 

 

 

(Level 2)
  (Level 3) 

Assets

                 

Interest rate swap contracts, current portion

Derivatives, asset current portion $984,547     $984,547   - 

Interest rate swap contracts, long-term portion

Derivatives, asset long-term portion $1,014,196   -  $1,014,196   - 
Derivative Instruments, Gain (Loss) [Table Text Block]

Derivative not designated as hedging instrument

Location of gain / (loss) recognized

 

Six Months Ended

June 30, 2021

 

Six Months Ended

June 30, 2022

 

Interest rate swap contract– Unrealized gain

Gain on derivatives, net

  

473,647

  

2,410,656

 

Interest rate swap contract - Realized loss

Gain on derivatives, net

  

(85,502

 

(100,752

)

Total gain on derivative

   

388,145

  

2,309,904