SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Dealer Incentive Liability, Advertising Costs (Details) - USD ($) $ in Thousands |
12 Months Ended | |
---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
|
Dealer Incentive Liability | ||
Dealer incentive liability | $ 5,531 | $ 6,115 |
Dealer incentive expense | $ 731 | $ 829 |