XML 60 R52.htm IDEA: XBRL DOCUMENT v3.20.2
Note 12 - Property, Plant and Equipment (Details Textual) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Statement Line Items [Line Items]    
Additions other than through business combinations, property, plant and equipment $ 8,188,000 $ 20,595,000
Borrowing costs capitalised 26,000 165,000
Total property, plant and equipment 119,410,000 113,651,000
Construction in progress [member]    
Statement Line Items [Line Items]    
Additions other than through business combinations, property, plant and equipment 6,476 20,093,000
Total property, plant and equipment $ 83,323 $ 76,847,000