Organization and Summary of Significant Accounting Policies - Fair Value and Income Tax (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets:
Non-qualified Deferred Compensation Plan Investments	$ 742	$ 650
Liabilities:
Earn-out contingent consideration obligation		(1,791)
Fair Value, Inputs, Level 1 | Other Assets
Assets:
Non-qualified Deferred Compensation Plan Investments	$ 742	650
Level 3 | Current liabilities held of sale
Liabilities:
Earn-out contingent consideration obligation		(270)
Level 3 | Noncurrent liabilities held of sale
Liabilities:
Earn-out contingent consideration obligation		$ (1,521)