Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information (Details)

v2.4.0.6
Business Segment Information (Details) (USD $)
 3 Months Ended
Mar. 31, 2013
region
segment
Mar. 31, 2012
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Number of reportable segments 4    
Number of U.S. regions reported in aggregate 4    
Income before taxes and unallocated corporate expenses $ 5,214,545 $ 4,246,232  
Total revenue 110,135,523 146,573,369  
Interest income 156,581 4,395  
Interest expense 925,833 1,208,713  
Depreciation and amortization of intangible assets 5,698,018 4,939,247  
Income (loss) before taxes (2,546,810) 2,317,051  
Total assets 630,892,995 625,978,593 675,472,003
Capital expenditures 12,659,232 7,440,713  
U.S Federal [Member]
      
Segment Reporting Information [Line Items]      
Total revenue 13,104,401 21,734,832  
Depreciation and amortization of intangible assets 110,035 102,570  
Income (loss) before taxes 660,762 1,288,361  
Total assets 110,098,258 138,020,136  
Capital expenditures 250,030 690,138  
Central U.S Region [Member]
      
Segment Reporting Information [Line Items]      
Total revenue 10,909,934 15,447,744  
Depreciation and amortization of intangible assets 4,736 5,075  
Income (loss) before taxes (167,153) 790,264  
Total assets 16,973,794 16,428,922  
Capital expenditures 62,897 0  
Other U.S Regions [Member]
      
Segment Reporting Information [Line Items]      
Total revenue 36,099,551 50,566,206  
Income (loss) before taxes 3,895,037 8,531,146  
Total assets 257,094,512 267,158,849  
Capital expenditures 609,434 454,776  
Canada [Member]
      
Segment Reporting Information [Line Items]      
Total revenue 13,660,424 17,635,632  
Interest income 13,946 0  
Interest expense 157,634 121,491  
Depreciation and amortization of intangible assets 193,122 107,129  
Income (loss) before taxes (730,056) 119,182  
Total assets 52,807,139 64,225,603  
Capital expenditures 161,674 1,382,270  
All Other [Member]
      
Segment Reporting Information [Line Items]      
Number of U.S. regions reported in aggregate 4    
Income before taxes and unallocated corporate expenses 5,214,545 4,246,232  
Total revenue 36,361,213 41,188,955  
Interest income 142,635 4,395  
Interest expense 768,199 1,087,222  
Depreciation and amortization of intangible assets 5,390,125 4,724,473  
Income (loss) before taxes (6,205,400) (8,411,902)  
Total assets 193,919,292 140,145,083  
Capital expenditures 11,575,197 4,913,529  
Unallocated Amount to Segment [Member]
      
Segment Reporting Information [Line Items]      
Unallocated corporate expenses $ 11,419,945 $ 12,658,134