Quarterly report pursuant to Section 13 or 15(d)

Credit Facilities (Details)

v3.4.0.3
Credit Facilities (Details) - USD ($)
 3 Months Ended
Jul. 31, 2015
Jul. 08, 2015
Jun. 29, 2015
Dec. 31, 2014
Nov. 24, 2014
Oct. 15, 2014
Dec. 20, 2012
Mar. 31, 2016
Mar. 31, 2015
Mar. 30, 2016
Dec. 31, 2015
Line of Credit Facility [Line Items]                      
Principal balance               $ 150,052,573     $ 150,732,752
Assets               669,370,341     677,979,621
Interest expense               3,926,009 $ 1,147,272    
Deferred costs, net of accumulated amortization of $1,435,213 and $2,717,609               3,957,987     4,187,271
Borrowed against the revolver               44,000,000 1,945,361    
Pinedale Liquids Gathering System [Member]                      
Line of Credit Facility [Line Items]                      
Assets               $ 139,100,000      
Line of Credit [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate       2.00%              
Borrowed against the revolver       $ 4,000,000              
Key Bank [Member] | Secured Debt [Member]                      
Line of Credit Facility [Line Items]                      
Description of variable rate basis               LIBOR      
Basis spread on variable rate             3.25% 1.00%      
Line of Credit Facility, Periodic Payment, Principal               $ 294,000      
Required principle payment as percentage of outstanding amount, beginning in year two               0.42%      
Line of Credit Facility, Periodic Payment Through Extension Period, Principal               $ 3,200,000      
Maximum borrowing capacity             $ 70,000,000        
Loan facility secured by assets             70,000,000        
Key Bank [Member] | Term Loan [Member]                      
Line of Credit Facility [Line Items]                      
Interest expense               156,000 129,000    
Deferred costs, net of accumulated amortization of $1,435,213 and $2,717,609               0     156,000
Regions [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity         $ 90,000,000            
Loan facility secured by assets         90,000,000            
Amortization of Financing Costs and Discounts               257,000 $ 190,000    
Deferred costs, net of accumulated amortization of $1,435,213 and $2,717,609               $ 3,100,000     $ 3,300,000
Regions [Member] | Revolving Credit Facility [Member] | Subsidiaries [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity         3,000,000            
Loan facility secured by assets         $ 3,000,000            
London Interbank Offered Rate (LIBOR) [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate         3.50%            
London Interbank Offered Rate (LIBOR) [Member] | Key Bank [Member] | Secured Debt [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate               4.25%      
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate         2.75%            
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate         3.50%            
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Key Bank [Member] | Secured Debt [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate               7.00%      
Mogas [Member] | Regions [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity         $ 3,000,000            
Loan facility secured by assets         $ 3,000,000            
Line of Credit [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity   $ 153,000,000                  
Loan facility secured by assets   153,000,000                  
Line of Credit [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Available borrowing capacity               $ 54,200,000      
Effective percentage               3.19%      
Line of Credit Facility, Periodic Payment, Principal               $ 900,000      
Maximum borrowing capacity   93,000,000                  
Loan facility secured by assets   93,000,000                  
Borrowed against the revolver     $ 42,000,000         $ 44,000,000      
Line of Credit [Member] | Revolving Credit Facility [Member] | Mowood/Omega Revolver [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity $ 1,500,000         $ 1,500,000          
Loan facility secured by assets $ 1,500,000         $ 1,500,000          
Line of Credit [Member] | Revolving Credit Facility [Member] | Parent Company [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity   105,000,000                  
Loan facility secured by assets   105,000,000                  
Line of Credit [Member] | Term Loan [Member]                      
Line of Credit Facility [Line Items]                      
Effective percentage               3.38%      
Line of Credit [Member] | Term Loan [Member] | Parent Company [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity   45,000,000                  
Loan facility secured by assets   45,000,000                  
Line of Credit [Member] | Term Loan [Member] | Subsidiaries [Member]                      
Line of Credit Facility [Line Items]                      
Maximum borrowing capacity   3,000,000                  
Loan facility secured by assets   $ 3,000,000                  
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member] | Mowood/Omega Revolver [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate 4.00%                    
Line of Credit [Member] | Prime Rate [Member] | Revolving Credit Facility [Member] | Mowood/Omega Revolver [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate           0.50%          
Line of Credit [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate   2.75%                  
Line of Credit [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility [Line Items]                      
Basis spread on variable rate   3.75%                  
Pinedale Liquids Gathering System [Member]                      
Line of Credit Facility [Line Items]                      
Non controlling economic interest pinedale GP               81.05%      
Value of economic interest               $ 47,400,000      
Pinedale Liquids Gathering System [Member] | Key Bank [Member] | Secured Debt [Member]                      
Line of Credit Facility [Line Items]                      
Principal balance                   $ 58,500,000  
Maximum borrowing capacity             70,000,000        
Loan facility secured by assets             $ 70,000,000        
Cash Flow Hedging [Member]                      
Line of Credit Facility [Line Items]                      
Cash flow hedge terminated                   $ 26,300,000