XML 55 R44.htm IDEA: XBRL DOCUMENT v3.22.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Goodwill (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Unit
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Goodwill [Abstract]      
Goodwill $ 14,536 $ 14,536 $ 14,536
Percentage of goodwill in total assets 4.90%    
Amount of goodwill impairment $ 0    
Discounted Cash Flows [Member]      
Goodwill [Abstract]      
Fair value of reporting units, measurement input 0.50    
EBITDA Multipliers [Member]      
Goodwill [Abstract]      
Fair value of reporting units, measurement input 0.50    
Transportation and Skilled Trades Segment [Member]      
Goodwill [Abstract]      
Goodwill $ 14,500 $ 14,500  
Number of reporting units | Unit 9