Consolidated Statements of Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.44	$ 0.53	$ 0.41
Amortization of unrealized gains, tax		$ 18	$ 46
Cash dividend declared, per share (in dollars per share)	$ 0.44	$ 0.53	$ 0.44
Loss in respect of derivative instruments designated for cash flow hedge, related tax		$ 24
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax		$ 0

Aggregate dividends declared during the period for each share of common stock outstanding.

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