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INCOME TAXES - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Operating Loss Carryforwards [Line Items] |  |
Increase in valuation allowance | $ 14,871,000 |
Addition to uncertain tax position related to reduction of research and development credit | 245,000 | $ 35,000
Accrued interest and penalties related to uncertain tax positions | 0 | $ 0
Domestic Tax Authority |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | 94,058,000 |
Research and development credits | 584,000 |
State and Local Jurisdiction |  |
Operating Loss Carryforwards [Line Items] |  |
Net operating loss carryforwards | $ 94,023,000 |

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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32718-109319 + Details
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