Quarterly report pursuant to Section 13 or 15(d)

LEASES - Narrative (Details)

v3.20.1
LEASES - Narrative (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2020
USD ($)
ft²
service_station
branch
Mar. 31, 2019
USD ($)
Lessee, Lease, Description [Line Items]    
Cash paid for amounts included in the measurement of operating leases liabilities | $ $ 479 $ 511
Hong Kong    
Lessee, Lease, Description [Line Items]    
Leased area (sq ft) 9,600  
Rolling Hills Estates, California    
Lessee, Lease, Description [Line Items]    
Leased area (sq ft) 4,900  
Monterey Park, California    
Lessee, Lease, Description [Line Items]    
Leased area (sq ft) 2,400  
Richmond, British Columbia    
Lessee, Lease, Description [Line Items]    
Leased area (sq ft) 1,600  
Metuchen, New Jersey    
Lessee, Lease, Description [Line Items]    
Leased area (sq ft) 2,000  
China    
Lessee, Lease, Description [Line Items]    
Number of leased branches | branch 9  
Number of leased service stations | service_station 11