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STOCKHOLDERS' EQUITY - Stock Options (Details) - USD ($) $ in Millions | 1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 31, 2019 | Dec. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Stock-based compensation |  |  |  |  |  |  |
Financial Designation, Predecessor and Successor [Fixed List] | Successor | Successor | Successor | Predecessor | Successor | Predecessor | Successor
2016 Incentive Plan | Stock options |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Vesting period |  |  |  |  |  |  | 3 years
Percentage of awards vesting on the annual anniversary date of the grant |  |  |  |  | 25.00% | 33.33% |
Expiration term |  |  |  |  |  |  | 10 years
Unrecognized compensation expense stock option |  |  |  | $ 0.9 |  | $ 0.9 |
Weighted average remaining vesting period |  |  |  |  |  | 7 months 6 days |
2020 Incentive Plan | Stock options |  |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |
Vesting period |  |  |  |  | 4 years |  |
Expiration term |  |  |  |  | 7 years |  |
Unrecognized compensation expense stock option |  |  | $ 1.3 |  | $ 1.3 |  |
Weighted average remaining vesting period |  |  |  |  | 2 years 1 month 6 days |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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 (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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