DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Number of reportable segments	2
Pre-tax increase in depreciation expense from a change in the Tractor Fleet salvage value percentage		$ 2,700
Restricted cash	$ 405	243
Bank overdrafts	2,600	5,200
Impairment of goodwill	0	0
Treasury stock reissued at lower than repurchase price	1,100	4,300
Contract asset	$ 1,600	$ 1,100