INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
INTANGIBLE ASSETS
Cost Basis	$ 25,248	$ 25,248
Accumulated Amortization	(13,103)	(12,737)
Accumulated Impairment Charges	(7,592)	(7,592)
Net Book Value	$ 4,553	$ 4,919
Remaining Weighted Average Amortization Period	6 years	6 years 6 months
Estimated future amortization expense
2020	$ 367
2021	733
2022	725
2023	664
2024	661
2025 and thereafter	1,403
Net Book Value	$ 4,553	$ 4,919
Minimum
INTANGIBLE ASSETS
Remaining Weighted Average Amortization Period	3 years
Maximum
INTANGIBLE ASSETS
Remaining Weighted Average Amortization Period	7 years
Noncompete agreements
INTANGIBLE ASSETS
Cost Basis	$ 170	170
Accumulated Amortization	(97)	(83)
Net Book Value	$ 73	$ 87
Remaining Weighted Average Amortization Period	2 years 7 months 6 days	3 years 1 month 6 days
Estimated future amortization expense
Net Book Value	$ 73	$ 87
Customer relationships
INTANGIBLE ASSETS
Cost Basis	15,979	15,979
Accumulated Amortization	(6,826)	(6,674)
Accumulated Impairment Charges	(7,592)	(7,592)
Net Book Value	$ 1,561	$ 1,713
Remaining Weighted Average Amortization Period	5 years 4 months 24 days	5 years 9 months 18 days
Estimated future amortization expense
Net Book Value	$ 1,561	$ 1,713
Trade names
INTANGIBLE ASSETS
Cost Basis	9,099	9,099
Accumulated Amortization	(6,180)	(5,980)
Net Book Value	$ 2,919	$ 3,119
Remaining Weighted Average Amortization Period	7 years 3 months 18 days	7 years 9 months 18 days
Estimated future amortization expense
Net Book Value	$ 2,919	$ 3,119