Consolidated Statements of Equity (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.53	$ 0.41	$ 0.52
Amortization of unrealized gains, tax		$ 46	$ 57
AOCI Attributable to Parent [Member]
Amortization of unrealized gains, tax	$ 18
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
Cash dividend declared, per share (in dollars per share)	$ 0.53	$ 0.41	$ 0.52

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

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