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Note 3 - Lines of Credit (Details Textual)
Jun. 30, 2019
USD ($)
Jun. 30, 2019
DKK (kr)
Jun. 30, 2018
USD ($)
Jun. 30, 2018
DKK (kr)
Line of Credit Facility, Maximum Borrowing Capacity $ 14,427 kr 94,620    
Guarantor Obligations, Current Carrying Value     $ 14,801 kr 94,620