Current report filing

Debt (Details)

v3.8.0.1
Debt (Details) - Revolving Credit Facility
 3 Months Ended
Jun. 30, 2015
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Nov. 25, 2014
USD ($)
Line of Credit Facility [Line Items]          
Maximum borrowing capacity         $ 170,000,000.0
Remaining borrowing capacity   $ 144,149,393 $ 146,181,002    
Maximum leverage ratio   4.0      
Debt covenant, minimum availability required   $ 10,000,000      
London Interbank Offered Rate (LIBOR)          
Line of Credit Facility [Line Items]          
Increments of debt that can be converted   $ 500,000      
Maximum | London Interbank Offered Rate (LIBOR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate   3.00%      
Minimum          
Line of Credit Facility [Line Items]          
Interest coverage rate   3.0      
Minimum | London Interbank Offered Rate (LIBOR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate   1.50%      
Sturgeon Acquisitions LLC          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity $ 25,000,000.0        
Remaining borrowing capacity     19,100,000 $ 18,200,000  
Interest coverage rate 3.5        
Debt covenant, minimum availability required       $ 5,000,000.0  
Interest rate, stated percentage 2.00%        
Long-term line of credit   $ 0 $ 0    
Sturgeon Acquisitions LLC | London Interbank Offered Rate (LIBOR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate 3.00%