| 
           Commitments and Contingencies (Details Textual) (USD $) 
         | 
        1 Months Ended | 9 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
           Mar. 31, 2012 
         | 
        
           Sep. 30, 2014
 
          lender 
         | 
        
           Jun. 30, 2014 
         | 
        
           Dec. 31, 2013 
         | 
        
           Sep. 30, 2013 
         | 
        
           Jul. 17, 2013 
         | 
        
           Jun. 30, 2013 
         | 
        
           Dec. 31, 2012 
         | 
        
           Sep. 30, 2012 
         | 
        
           Sep. 30, 2014
 
          South Edge guarantee [Member] 
         | 
        
           Jun. 06, 2011
 
          South Edge guarantee [Member] 
         | 
        
           Oct. 26, 2011
 
          South Edge [Member]
 
          JointVenture 
         | 
        
           Sep. 30, 2014
 
          Summary Judgment Excluding Interest [Member] [Member] 
         | 
        
           Sep. 30, 2014
 
          Summary Judgment Including Interest [Member] [Member] 
         | 
        
           Sep. 30, 2014
 
          Summary Judgment Interest [Member] 
         | 
        
           Sep. 30, 2014
 
          Summary Judgment Attorney Fees [Member] 
         | 
      |
| Loss Contingencies [Line Items] | ||||||||||||||||
| Reserved for litigation and asserted claims | $ 15,747,000 | $ 16,463,000 | ||||||||||||||
| Joint venture ownership percentage | 3.53% | |||||||||||||||
| Springing Repayment Guarantee_Original demand Letter | 13,200,000 | |||||||||||||||
| Number of co-ventures in joint venture | 4 | |||||||||||||||
| Litigation Judgment Amount | 15,053,857 | 15,753,344 | 699,487 | 877,241 | ||||||||||||
| Supersedeas Bond | 16,930,477 | 16,050,604 | ||||||||||||||
| Commitments and Contingencies (Textual) [Abstract] | ||||||||||||||||
| Warranty reserve | 21,454,000 | 20,882,000 | 21,971,000 | 22,257,000 | 21,844,000 | 22,064,000 | ||||||||||
| Number of lenders filing petition for involuntary bankruptcy | 3 | |||||||||||||||
| Amount requested in demand for arbitration related to alleged breaches | 13,500,000 | |||||||||||||||
| Additional amount requested in demand for arbitration related to pro rata future infrastructure improvement costs subsequently dismissed | $ 9,800,000 | |||||||||||||||