Fair Value Measurements (Assets and Liabilities at Fair Value, Recurring Basis) (Details) - Recurring Measurement [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Liabilities:
Earnout consideration liability	$ 2,500	$ 500
Level 1 [Member]
Liabilities:
Earnout consideration liability	0	0
Level 2 [Member]
Liabilities:
Earnout consideration liability	0	0
Level 3 [Member]
Liabilities:
Earnout consideration liability	$ 2,500	$ 500