Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES Concentrations of Credit Risk Narrative (Details)

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NATURE OF OPERATIONS AND ACCOUNTING POLICIES Concentrations of Credit Risk Narrative (Details) - Accounts Receivable - Customer Concentration Risk - customer
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Concentration Risk [Line Items]    
Number of major customers 2 2
Percentage of net trade receivables 43.00% 31.00%