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Acquisition of Citizens Homes - Narrative (Details) (Citizens Homes, Inc., USD $)
0 Months Ended 3 Months Ended 6 Months Ended
Apr. 10, 2014
Jun. 30, 2014
Jun. 30, 2014
Apr. 10, 2014
Business Acquisition [Line Items]        
Citizens Homes' revenue from date of acquisition (April 10th, 2014) to quarter end (June 30th, 2014)   $ 10,200,000    
Citizens Homes' net income from date of acquisition to quarter end   85,000    
Consideration transferred 18,650,000      
Contingent consideration, maximum       6,000,000
Performance period for achievement of contingent consideration related milestones 5 years      
Contingent consideration, minimum       0
Contingent consideration, fair value       4,600,000
Acquisition costs   180,000 640,000  
Contingent Consideration Liability
       
Business Acquisition [Line Items]        
Discount rate (percentage) 15.70%      
Volatility rate (percentage) 28.20%      
Credit risk (percentage) 3.11%      
Contingent Consideration Liability | Minimum
       
Business Acquisition [Line Items]        
Discount rate (percentage) 15.80%      
Contingent Consideration Liability | Maximum
       
Business Acquisition [Line Items]        
Discount rate (percentage) 17.00%      
Acquisition-related Costs [Member]
       
Business Acquisition [Line Items]        
Acquisition costs   $ 180,000 $ 640,000