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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 28, 2016 | Jul. 23, 2012 | Mar. 09, 2011 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2017
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Cash and cash equivalents maturity period |  |  |  | three months or less |  |  |
Allowance for doubtful accounts |  |  |  | $ 100,000 | $ 0 | $ 0 |
Goodwill impairment loss |  |  |  | $ 0 |  |  |
License fee agreement, term of agreement |  |  |  | 6 years 4 months 24 days |  |  |
Taxes, other |  |  |  | $ 171,000 | 1,300,000 | 4,300,000 |
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%. |  |  |
Increase in deferred tax non-current asset |  |  |  | $ 15,832,000 | 14,945,000 |  |
Decrease in deferred tax current asset |  |  |  | (8,661,000) | (12,326,000) |  |
Reclassification of non-cash amortization |  |  |  |  | $ 10,999 | $ 10,997 |
ASU No. 2015-17 [Member] | Scenario Forecast [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Increase in deferred tax non-current asset |  |  |  |  |  |  | $ 8,661,000
Decrease in deferred tax current asset |  |  |  |  |  |  | $ (8,661,000)
ASU No. 2016-09 [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Adjustment to retained earnings due to adoption of accounting standard |  |  |  | $ 26,900,000 |  |  |
Licensing Agreements [Member] | Motorola [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Amortization period of acquired intangible assets (in years) |  |  | 7 years 6 months |  |  |  |
Patents | FUJIFILM [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
OLED patents useful life |  | 10 years |  |  |  |  |
Patents | BASF [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
OLED patents useful life | 10 years |  |  |  |  |  |
OLED Technology License Agreement [Member] | Tianma [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Agreement effective date |  |  |  | Jul. 21, 2016 |  |  |
Agreement period |  |  |  | 5 years |  |  |
Supplemental Material Purchase Agreement [Member] | Tianma [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Agreement effective date |  |  |  | Jul. 21, 2016 |  |  |
Agreement period |  |  |  | 5 years |  |  |
Minimum [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Recognized income tax positions measured at percentage of likelihood of realization |  |  |  | 50.00% |  |  |
Minimum [Member] | Other Intangible Assets [Member] | Adesis, Inc. [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Amortization period of acquired intangible assets (in years) |  |  |  | 10 years |  |  |
Maximum [Member] | Other Intangible Assets [Member] | Adesis, Inc. [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Amortization period of acquired intangible assets (in years) |  |  |  | 15 years |  |  |
Building [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Estimated useful life (in years) |  |  |  | 30 years |  |  |
Building Improvements [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Estimated useful life (in years) |  |  |  | 15 years |  |  |
Office, Lab Equipment and Furniture and Fixtures [Member] | Minimum [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Estimated useful life (in years) |  |  |  | 3 years |  |  |
Office, Lab Equipment and Furniture and Fixtures [Member] | Maximum [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Estimated useful life (in years) |  |  |  | 7 years |  |  |
Computer Software [Member] |  |  |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Estimated useful life (in years) |  |  |  | 3 years |  |  |

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