Organization and Summary of Significant Accounting Policies, Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill [Abstract]
Goodwill impairment	$ 0	$ 0	$ 14,240	$ 0	$ 0	$ 14,240	$ 0
Tax benefit associated with goodwill impairment charge			$ (1,300)