ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock issued (Details) - USD ($)
$ / shares in Units, $ in Thousands |
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1 Months Ended |
12 Months Ended |
19 Months Ended |
Feb. 19, 2021 |
Jun. 12, 2020 |
Jun. 04, 2020 |
Jan. 28, 2020 |
Jun. 30, 2020 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2021 |
| Secondary Public Offering, 2020 |
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| Sale of stock |
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| Issue price (in dollars per share) |
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$ 45.50
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| Proceeds from stock issuance, net of cash issuance costs |
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$ 134,100
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$ 134,102
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| Secondary Public Offering, Excluding Underwriters' Option |
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| Sale of stock |
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| Issuance of common stock (in shares) |
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2,741,489
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| Secondary Public Offering, Underwriters' Option |
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| Sale of stock |
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| Issuance of common stock (in shares) |
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411,223
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| February Offering, 2021 |
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| Sale of stock |
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| Issuance of common stock (in shares) |
3,450,000
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| Issue price (in dollars per share) |
$ 23.00
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| Proceeds from stock issuance, net of cash issuance costs |
$ 74,400
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$ 74,421
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| February Offering Underwriters' Option |
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| Sale of stock |
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| Issuance of common stock (in shares) |
450,000
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| Shelf Registration Statement |
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| Sale of stock |
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| Issuance of common stock (in shares) |
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3,450,000
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| Maximum value of shares authorized to be sold in stock offering |
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$ 300,000
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| Goldman Equity Distribution Agreement |
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| Sale of stock |
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| Issuance of common stock (in shares) |
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0
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| Maximum value of shares authorized to be sold in stock offering |
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$ 100,000
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$ 100,000
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