Share-Based Payment Arrangements (Summary of the Status of Stock Options) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-Based Payment Arrangements [Abstract]
Stock Options, Outstanding at January 1, 2018	406,731
Stock options, Granted	0	0
Stock Options, Forfeited or Expired	(20,000)
Stock Options, Outstanding at March 31, 2018	386,731
Stock Options, Exercisable at March 31, 2018	386,731
Weighted Average Exercise Price, Outstanding at January 1, 2018	$ 7.85
Weighted Average Exercise Price, Forfeited or Expired	11.46
Weighted Average Exercise Price, Outstanding at March 31, 2018	7.66
Weighted Average Exercise Price, Exercisable at March 31, 2018	$ 7.66
Average Remaining Contractual Term, Outstanding at March 31, 2018	1 year
Average Remaining Contractual Term, Exercisable at March 31, 2018	1 year
Aggregate Intrinsic Value, Outstanding at March 31, 2018	$ 669
Aggregate Intrinsic Value, Exercisable at March 31, 2018	$ 669