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Note 12 - Other Assets - Mortgage Loans and Other Financing Receivables (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Balance $ 7,829 $ 14,448 $ 21,838
New mortgage and other loans 25,500 3,750 14,825
Additions under existing mortgage loans 0 48 0
Foreign currency translation 0 0 116
Amortization of loan discounts 0 33 125
Loan repayments (25) (10,136) (21,012)
Collections of principal (152) (313) (1,287)
Charge off/foreign currency translation 0 0 (155)
Allowance for credit losses (906) 0 0
Amortization of loan costs 0 (1) (2)
Balance $ 32,246 $ 7,829 $ 14,448