Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance as of beginning of year	$ 301	$ 388
Additions for tax positions related to the current year	51	63
Additions for tax positions related to prior years	0	0
Reduction due to lapse of statute of limitations	(117)	(150)
Balance as of end of year	$ 235	$ 301