Dividend Payment (Details Textual) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Sep. 18, 2017	Jun. 15, 2017	Mar. 20, 2017
Dividend Payment Terms [Line Items]
Common Stock, Dividends, Per Share, Declared (in dollars per share)	$ 0.115	$ 0.115	$ 0.115
Dividends, Common Stock, Cash (in dollars)	$ 1.7	$ 1.7	$ 1.6