Annual report pursuant to Section 13 and 15(d)

Financing Notes Receivable - Black Bison Financing Notes (Details)

v3.6.0.2
Financing Notes Receivable - Black Bison Financing Notes (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Mar. 13, 2014
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Feb. 29, 2016
Jul. 23, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Advances on revolving line of credit                     $ 44,000,000 $ 45,392,332 $ 34,676,948    
Provision for loan loss     $ 0 $ 0 $ 369,278 $ 4,645,188 $ 5,833,000 $ 7,951,137 $ 0 $ 0 $ 5,014,466 13,784,137 0    
Line of Credit [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Advances on revolving line of credit $ 4,000,000                            
Basis spread on variable rate 2.00%                            
Black Bison Water Services LLC [Member] | Line of Credit [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Advances on revolving line of credit   $ 4,300,000                          
Maximum borrowing capacity   $ 11,500,000                         $ 15,300,000
Interest Rate   12.00%                          
Basis spread on variable rate   2.00%                          
Variable rent cap percentage   19.00%                          
Black Bison Water Services LLC [Member] | Long-term Debt [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Maximum borrowing capacity                             12,000,000
Subsidiaries [Member] | Long-term Debt [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Maximum borrowing capacity $ 1,000,000                       $ 1,000,000    
Subsidiaries [Member] | Black Bison Water Services LLC [Member] | Long-term Debt [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Maximum borrowing capacity                             $ 3,300,000
Loans Agreement [Member] | Subsidiaries [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Deferred origination costs             14,000         14,000      
Interest accrued             355,000         355,000      
Black Bison and Intermediate Holdings [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Net note receivable balance             $ 2,000,000         $ 2,000,000      
BB Intermediate [Member]                              
Accounts, Notes, Loans and Financing Receivable [Line Items]                              
Equity interest percentage                           100.00%