GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Oct. 01, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 2,088,000	$ 2,088,000	$ 2,088,000		$ 0
Amortization expense of intangible assets	$ 80,000	$ 160,000
Non-compete agreements
Goodwill [Line Items]
Amortization period, over		2 years
Trade name
Goodwill [Line Items]
Amortization period, over		5 years
Customer lists
Goodwill [Line Items]
Amortization period, over		5 years
Coit Staffing, Inc.
Goodwill [Line Items]
Goodwill				$ 2,088,000