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CONVERTIBLE DEBT (Details) |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 26, 2019 $ / shares shares | Jan. 12, 2018 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) d $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares
Debt Instrument [Line Items] |  |  |  |  |
Common stock, par value (in dollars per share) |  |  | $ 0.001 | $ 0.001 |
Debt conversion, original debt amount | $ |  |  |  |  | $ 2,400,000
Common stock conversion price (in dollars per share) |  |  |  |  | $ 3.00
Convertible debt | $ |  |  |  |  | $ 0
Amortization of debt discount | $ |  |  | $ 0 | $ 0 | 356,000
Convertible Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Class of warrant or right, outstanding (in shares) | shares |  |  | 93,750 | 93,750 |
Debt instrument, conversion price (in dollars per share) |  |  | $ 3.00 |  |
Conversion term |  |  | 12 months |  |
Minimum trades daily volume (in shares) | shares |  |  | 50,000 |  |
Threshold consecutive trading days | d |  |  | 20 |  |
Debt instrument, convertible, stock price trigger (in dollars per share) |  |  | $ 4.00 |  |
Debt instrument, unamortized discount | $ |  |  |  |  | $ 675,000
Conversion of stock, shares converted (in shares) | shares |  |  |  |  | 1,258,608
Amortization of debt discount | $ |  |  | $ 0 | $ 0 | $ 400,000
Private Placement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Sale of stock, number of shares issued (in shares) | shares | 4,123,257 | 36 |  |  |
Sale of stock, price per share (in dollars per share) | $ 3.10 | $ 250,000 |  |  |
Debt instrument, face amount | $ |  | $ 250,000 |  |  |
Warrant term |  | 3 years |  |  |
Class of warrant or right, outstanding (in shares) | shares |  | 37,500 |  |  |
Common stock, par value (in dollars per share) |  | $ 0.001 |  |  |
Class of warrant or right, exercise price (in dollars per share) | $ 3.50 | $ 0.01 |  |  |
Private Placement | Convertible Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate |  | 1.00% |  |  |

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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 + Details
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 + Details
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