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LEASES (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Nov. 25, 2020	Mar. 03, 2020	Jan. 03, 2020	Dec. 31, 2019	Sep. 20, 2019	Oct. 20, 2017
Operating lease liabilities
2021					$ 2,352
2022					2,447
2023					1,514
2024					512
2025					528
2026					223
Total undiscounted future minimum lease payments					7,576
Less: Difference between undiscounted lease payments and discounted operating lease liabilities:					(605)
Total lease liabilities	$ 2,400			$ 1,400	6,971		$ 3,900
Finance lease liabilities
2021					105
2022					105
2023					105
2024					77
2025					35
Total undiscounted future minimum lease payments					427
Less: Difference between undiscounted lease payments and discounted lease liabilities:					(67)
Total lease liabilities		$ 100	$ 100		$ 360	$ 200

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