Annual report pursuant to Section 13 and 15(d)

FINANCING RECEIVABLES - Additional Information (Details)

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FINANCING RECEIVABLES - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Receivables [Abstract]    
Percentage of financing done by the Company depending upon the individual's credit score 100.00%  
Financing receivables $ 37,677 $ 32,716
Number of days to elapse for financing receivables to be charged-off 180 days  
Charge-offs as a percentage of average financing receivables 4.30% 3.20%
Number of days the Company offers cash financing to customers 90 days  
Period of past due loans that continue to accrue interest due to an administrative issue 180 days  
Long-term installment receivables, net $ 20,414 $ 16,748