Condensed Consolidated Statements of Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.11	$ 0.23
Amortization of unrealized gains, tax	$ 18	$ 9
Loss in respect of derivative instruments designated for cash flow hedge, related tax	24	13
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax.	$ 0	$ 0

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

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