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Organization and Summary of Significant Accounting Policies - Major Customer Revenue (Details) - Fee Building Segment [Member] - Customer Concentration Risk [Member] - customer
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Sales Revenue [Member]        
Concentration Risk [Line Items]        
Concentration risk, number of customers 1 1 1 1
Concentration Risk, Percentage 92.00% 87.00% 93.00% 83.00%
Contracts and Accounts Receivable [Member]        
Concentration Risk [Line Items]        
Concentration risk, number of customers     1 1
Concentration Risk, Percentage     76.00% 98.00%