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Consolidated Statements of Equity (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2019
Retained Earnings [Member]    
Cash dividend declared, per share (in dollars per share) $ 0.48 $ 0.44
Amortization of unrealized gains in respect of derivative instruments designated for cash flow hedge, tax   $ 18
Change in unrealized gains or losses on marketable securities available-for-sale , tax $ 0  
Cross Currency Interest Rate Contract [Member]    
Change in respect of derivative instruments designated for cash flow hedge, tax 817 24
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax 0 0
Amortization of unrealized gains in respect of derivative instruments designated for cash flow hedge, tax 817  
Change in unrealized gains or losses on marketable securities available-for-sale , tax $ 0 $ 0