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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