PREPAID EXPENSES AND OTHER CURRENT ASSETS - Narrative (Details) - USD ($)
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3 Months Ended |
12 Months Ended |
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Aug. 26, 2021 |
Dec. 31, 2020 |
Dec. 23, 2020 |
Dec. 16, 2020 |
Sep. 01, 2020 |
Mar. 31, 2022 |
Mar. 31, 2021 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Apr. 13, 2021 |
| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Proceeds from the issuance of common stock |
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$ 0
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$ 18,020,000
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$ 27,399,999
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$ 4,197,622
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| Receivable on sale of equity securities |
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$ 200,000
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0
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200,000
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| Deposit |
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145,600
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3,567,061
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$ 145,600
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| Pelen LLC |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Membership interest |
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75.00%
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| Wingfield Tono LP |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Number of shares issued in transaction (in shares) |
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3,333,333
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15,666,667
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| Sale of stock, price per share (in dollars per share) |
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$ 0.33
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| Proceeds from the issuance of common stock |
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$ 900,000
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$ 1,100,000
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| Shares returned to eliminate receivable (in shares) |
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606,601
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| LINICO Corporation |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Deposit |
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$ 3,219,607
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| Pelen, LLC |
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| Accounts, Notes, Loans and Financing Receivable [Line Items] |
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| Option fee, first year |
$ 100,000
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$ 100,000
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| Option term |
1 year
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1 year
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| Purchase price, first year |
$ 4,400,000
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$ 3,750,000
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