Share-Based Payment Arrangements (Schedule of Options, Grants in Period and Grant Date Intrinsic Value) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Cost of share-based payments (non-cash)			$ 228	$ 537
Employee Stock Option [Member]
Intrinsic value of options exercised		$ 268		382
Cost of share-based payments (non-cash)		41	38	80
Income tax benefit of share-based payments recognized in income		$ 7	$ 8	$ 15