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Accounts Receivable
6 Months Ended
Jun. 30, 2018
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable
Trade accounts receivable are stated at current value less an allowances, which approximates fair value. This allowance is estimated based primarily on management’s evaluation of specific balances as the balances become past due, commercial adjustments, the financial condition of our customers and our historical experience with write-offs. If not reserved through specific identification procedures, our general policy for potentially uncollectible accounts is to reserve at a certain percentage based upon the aging categories of accounts receivable and our historical experience with write-offs. Past due status is based upon the due date of the original amounts outstanding. When items are ultimately deemed uncollectible they are charged off against the reserve previously established in the allowance.