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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) |  |  |  | 6 Months Ended
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Apr. 22, 2021 | Jun. 28, 2016 | Jul. 23, 2012 | Jun. 30, 2021
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Recognized income tax positions measured at likelihood of realization description |  |  |  | Recognized income tax positions are measured at the largest amount of which the likelihood of realization is greater than 50%.
Minimum [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Recognized income tax positions measured at percentage of likelihood of realization |  |  |  | 50.00%
Patents [Member] | FUJIFILM [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
OLED patents useful life |  |  | 10 years | 10 years
Patents [Member] | BASF [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
OLED patents useful life |  | 10 years |  | 10 years
Other Intangible Assets [Member] | Adesis, Inc. [Member] | Minimum [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Amortization period of acquired intangible assets (in years) |  |  |  | 10 years
Other Intangible Assets [Member] | Adesis, Inc. [Member] | Maximum [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Amortization period of acquired intangible assets (in years) |  |  |  | 15 years
Visionox Hefei Technology Co. Ltd [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Additional agreement duration | 5 years |  |  |

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