Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended		9 Months Ended
	Oct. 08, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Equity [Abstract]
Treasury stock, shares, acquired					8,397		24,453
Treasury stock, value					$ 411	$ 817	$ 1,502	$ 4,777
Treasury stock reissued					28,452		82,460
Cash Dividends per Share		$ 0.55	$ 0.55	$ 0.55	$ 0.55	$ 0.55	$ 1.65	$ 1.65
Dividends payable, date declared	Oct. 08, 2019
Dividends declared (in dollars per share)	$ 0.55
Dividends payable, date of record	Oct. 18, 2019
Dividends payable, date to be paid	Nov. 19, 2019