DESCRIPTION OF BUSINESS, COVID-19 (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2020 USD ($) Store	Dec. 31, 2020 USD ($) Store	Dec. 31, 2019 USD ($)	Sep. 30, 2020 Store	Apr. 02, 2020 Employee
COVID19 [Abstract]
Number of employees granted temporary leave | Employee					406
Percentage on total workforce reduced					0.66%
Proceeds from long-term debt | $		$ 416	$ 0
Number of stores permanently closed	9
Number of stores	106	106
Number of stores reopened				106
Impairment expense | $		$ 1,078	$ 1,002
CECRA [Member]
COVID19 [Abstract]
Percentage reduction of store rent	75.00%
Rent received through abatements | $	$ 50
Institute of Official Credit Guarantee for Small and Medium-sized Enterprises [Member]
COVID19 [Abstract]
Proceeds from long-term debt | $	$ 400
Term of agreement	5 years	5 years
Fixed interest rate	1.50%	1.50%
Period required to make monthly interest payments	2 years	2 years
Canada [Member]
COVID19 [Abstract]
Number of stores	10	10
Spain [Member]
COVID19 [Abstract]
Number of stores	1	1