Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment (Details)

v3.7.0.1
Property, Plant and Equipment (Details) - USD ($)
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 394,450,876   $ 387,818,443
Deposits on equipment and equipment in process of assembly 39,144,915   8,701,725
Property, plant and equipment, gross 433,595,791   396,520,168
Less: accumulated depreciation 189,574,094   175,272,940
Property, plant and equipment, net 244,021,697   221,247,228
Depreciation 14,626,027 $ 15,145,841  
Proceeds from disposal of property and equipment 369,258 34,863  
Loss (gain) on disposal of property and equipment 79,408 21,000  
Land      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment 2,010,555   2,010,555
Land improvements      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 3,640,976   3,640,976
Useful Life 15 years    
Buildings      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 42,461,037   42,191,745
Buildings | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Buildings | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 20 years    
Drilling rigs and related equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 139,101,541   138,526,519
Proceeds from disposal of property and equipment 347,844 $ 0  
Loss (gain) on disposal of property and equipment $ 242,723    
Drilling rigs and related equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Drilling rigs and related equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 15 years    
Pressure pumping equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 101,580,322   96,500,592
Pressure pumping equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Pressure pumping equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 5 years    
Coil tubing equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 28,006,153   28,019,217
Coil tubing equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 4 years    
Coil tubing equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Other machinery and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 36,171,379   35,548,357
Other machinery and equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 7 years    
Other machinery and equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 20 years    
Vehicles, trucks and trailers      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 30,041,893   29,964,148
Vehicles, trucks and trailers | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 5 years    
Vehicles, trucks and trailers | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 10 years    
Other property and equipment      
Property, Plant and Equipment [Line Items]      
Property, plant, and equipment $ 11,437,020   $ 11,416,334
Other property and equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Useful Life 3 years    
Other property and equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Useful Life 12 years