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Organization and Summary of Significant Accounting Policies (Details 4) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Goodwill        
Weighted percentage assigned to each approach for valuation of goodwill (percent)   50.00%    
Goodwill impairment $ 3,700 $ 3,738 $ 0 $ 0