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STOCK-BASED COMPENSATION - 2015 EIP Restricted Stock Units (Details) - 2015 EIP Plan - Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 23, 2022 | May 16, 2022 | Feb. 23, 2022 | May 13, 2021 | May 04, 2021 | Feb. 23, 2021 | Jul. 15, 2020 | Feb. 25, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Stock Awards |  |  |  |  |  |  |  |  |  |  |
Number of common shares outstanding in respect of RSUs |  |  |  |  |  |  |  |  | 612,300 | 478,848 |
Number of Shares |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period (in shares) |  |  |  |  |  |  |  |  | 306,887 | 298,834 | 162,096
Granted (in shares) | 270,097 | 27,331 | 201,934 | 33,525 | 18,428 | 103,599 | 42,642 | 173,749 | 533,969 | 159,492 | 221,903
Vested (in shares) |  |  |  |  |  |  |  |  | (198,884) | (151,439) | (83,675)
Forfeited (in shares) |  |  |  |  |  |  |  |  |  |  | (1,490)
Balance at the end of the period (in shares) |  |  |  |  |  |  |  |  | 641,972 | 306,887 | 298,834
Number of shares vested |  |  |  |  |  |  |  |  | 243,920 |  |
Weighted Average Grant Date Price, Vested |  |  |  |  |  |  |  |  | $ 11.03 |  |
Weighted Average Fair Value |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period (in dollars per share) |  |  |  |  |  |  |  |  | 9.65 | $ 7.49 | $ 9.26
Granted (in dollars per share) |  |  |  |  |  |  |  |  | 17.55 | 11.93 | 6.80
Vested (in dollars per share) |  |  |  |  |  |  |  |  | 11.23 | 7.79 | 9.07
Forfeited (in dollars per share) |  |  |  |  |  |  |  |  |  |  | 8.39
Balance at the end of the period (in dollars per share) |  |  |  |  |  |  |  |  | $ 15.74 | $ 9.65 | $ 7.49
Weighted-average remaining contractual life |  |  |  |  |  |  |  |  | 3 years 3 months 29 days |  |
Additional disclosures |  |  |  |  |  |  |  |  |  |  |
Total fair value of shares vested |  |  |  |  |  |  |  |  | $ 4,006 | $ 1,838 | $ 550
Unrecognized compensation cost related to nonvested stock awards |  |  |  |  |  |  |  |  |  |  |
Unrecognized compensation cost |  |  |  |  |  |  |  |  | $ 6,845 |  |
Weighted-average period for recognition of unrecognized compensation cost |  |  |  |  |  |  |  |  | 3 years 3 months 29 days |  |
General and Administrative Expense |  |  |  |  |  |  |  |  |  |  |
Additional disclosures |  |  |  |  |  |  |  |  |  |  |
Recognized nonvested stock amortization expense |  |  |  |  |  |  |  |  | $ 2,964 | $ 1,632 | $ 1,239
Other Individuals. | Minimum |  |  |  |  |  |  |  |  |  |  |
Stock Awards |  |  |  |  |  |  |  |  |  |  |
Vesting period of awards |  |  |  |  |  |  |  |  | 3 years |  |
Other Individuals. | Maximum |  |  |  |  |  |  |  |  |  |  |
Stock Awards |  |  |  |  |  |  |  |  |  |  |
Vesting period of awards |  |  |  |  |  |  |  |  | 5 years |  |

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- Definition Weighted average remaining contractual term for equity-based awards excluding options, 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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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