GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Net book value of intangibles	$ 15,392,000	$ 20,430,000
Amortization expense	$ 0	0	$ 0
Trade name
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Net book value of intangibles	$ 6,096,000	7,536,000
Agent relationships
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Location turnover rate	17.40%
Net book value of intangibles	$ 7,585,000	10,741,000
Developed technology
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Number of development years for state-of-the-art system	20 years
Obsolescence rate	18.00%
Net book value of intangibles	$ 910,000	1,366,000
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Expected useful life	10 years
Net book value of intangibles	$ 801,000	$ 787,000