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7. Analysis of Franchise Locations (Details) - Locations	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Incentive Stock Option Plan [Member]
Franchised and owned branch locations, beginning	147	97
Closed	(13)	(10)
Opened	5	60
Franchised and owned branch locations, ending	139	147

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