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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($) segment | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Accounting Policies [Line Items] |  |  |
Number of reportable segments | segment | 1 |  |
Number of operating segments | segment | 1 |  |
Cash, uninsured amount | $ 38,000 | $ 174,000 |
Interest percentage | 1.50% |  |
Marketing and advertising expense | $ 4,000 | $ 996 | $ 737
Capitalized software |  |  |
Accounting Policies [Line Items] |  |  |
Finite-lived intangible assets, remaining amortization period | 3 years |  |
Notes Receivable |  |  |
Accounting Policies [Line Items] |  |  |
Interest percentage | 10.00% |  |
Maximum |  |  |
Accounting Policies [Line Items] |  |  |
Cash, FDIC insured amount | $ 250 |  |
Acquired intangible assets, weighted average useful life | 6 years |  |
Maximum | Notes Receivable |  |  |
Accounting Policies [Line Items] |  |  |
Interest percentage | 12.00% |  |
Notes receivable term | 18 months |  |
Minimum |  |  |
Accounting Policies [Line Items] |  |  |
Acquired intangible assets, weighted average useful life | 5 years |  |
Minimum | Notes Receivable |  |  |
Accounting Policies [Line Items] |  |  |
Interest percentage | 9.00% |  |
Notes receivable term | 12 months |  |

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- Definition Financing Receivable, Excluding Accrued Interest, Term + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
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- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 + Details
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- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599 + Details
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