Condensed Consolidated Statements of Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Retained Earnings [Member]
Cash dividend declared, per share (in dollars per share)	$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.10	$ 0.23
Amortization of unrealized gains, tax	$ (6)	$ 6	$ 6	$ 6	$ 9	$ 9
Amortization of unrealized gains, tax	$ 6	$ (6)	(6)	(6)	(9)	(9)
Loss in respect of derivative instruments designated for cash flow hedge, related tax			24	0	11	13
Change in unrealized gains or losses in respect of the Company's share in derivative instruments of unconsolidated investment, tax			$ 0	$ 0	$ 0	$ 0

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

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