STOCKHOLDERS' EQUITY - Forward Stock Split (Details)  | 
3 Months Ended | 12 Months Ended | 
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Mar. 31, 2021  | 
Dec. 31, 2020  | 
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| Forward stock split ratio | 1 | |
| OLD PlayStudios, Inc. | ||
| Forward stock split ratio | 2 | 
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- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Details 
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