Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Shareholders' Equity [Abstract]
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Proceeds from issuance of common stock			$ 1,629
Treasury Stock, Shares, Acquired	0	0	0	100,000
Maximum number of shares authorized (in shares)				750,000
Average cost of repurchased stock (in dollars per share)				$ 8.66