Annual report pursuant to Section 13 and 15(d)

COMMITMENTS AND CONTINGENT LIABILITIES (Details Textual)

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COMMITMENTS AND CONTINGENT LIABILITIES (Details Textual)
 12 Months Ended
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
ft²
Dec. 31, 2014
USD ($)
Loss Contingencies [Line Items]      
Operating Leases, Rent Expense, Net | $ $ 60,000 $ 60,000 $ 60,000
Corporate Headquarters In Midland, Texas [Member]      
Loss Contingencies [Line Items]      
Area of Land   15,000  
Former Corporate Headquarters In Midland, Texas [Member]      
Loss Contingencies [Line Items]      
Area of Land   3,700  
Accounting Offices In Tulsa, Oklahoma [Member]      
Loss Contingencies [Line Items]      
Area of Land   3,700  
Field Office In Andrews, Texas [Member]      
Loss Contingencies [Line Items]      
Area of Land   2,000  
Standby Letters of Credit [Member]      
Loss Contingencies [Line Items]      
Line of Credit Facility, Maximum Borrowing Capacity | $ 280,000    
Capital Lease Obligations [Member]      
Loss Contingencies [Line Items]      
Operating Leases, Rent Expense, Net | $ $ 527,582 $ 526,658 $ 167,120