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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Furniture, Fixtures and Equipment, net to Reimbursable Expenditures (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Furniture, Fixtures and Equipment, net
Capitalized costs associated with system and website development	$ 300,000	$ 600,000
Goodwill
Impairment of goodwill	0	0
Debt Issuance Costs
Amortization of debt issuance costs	$ 403,000	610,000
Revenue Recognition
Notice period to terminate agreements early due to breach or for convenience	30 days
Reimbursable Expenditures
Reimbursable expenditures	$ 1,700,000	$ 9,600,000
Minimum
Revenue Recognition
Term of provisions	6 months
Maximum
Revenue Recognition
Term of provisions	12 months
Furniture, fixtures and equipment | Minimum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	3 years
Furniture, fixtures and equipment | Maximum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	5 years
Leasehold improvements | Minimum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	3 years
Leasehold improvements | Maximum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	5 years

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Term of provisions which are typically prohibit the Company from performing a defined range of services and usually apply only to specific employees or the specific project team.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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-Topic 220
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-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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-Publisher FASB
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-Section 45
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