Universal Display (OLED) 10-Q 7 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 05, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'UNIVERSAL DISPLAY CORP \PA\	'
Entity Central Index Key	'0001005284	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	46,463,695

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS:	'	'
Cash and cash equivalents	$75,554	$70,586
Short-term investments	215,331	202,024
Accounts receivable	20,500	15,657
Inventory	20,664	10,595
Deferred income taxes	18,288	21,563
Other current assets	13,074	6,623
Total current assets	363,411	327,048
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $23,693 and $22,756	16,973	14,893
ACQUIRED TECHNOLOGY, net of accumulated amortization of $38,339 and $32,841	88,513	94,011
INVESTMENTS	2,522	7,417
DEFERRED INCOME TAXES	15,456	19,143
OTHER ASSETS	494	242
TOTAL ASSETS	487,369	462,754
CURRENT LIABILITIES:	'	'
Accounts payable	12,227	5,256
Accrued expenses	9,977	16,039
Deferred revenue	3,095	1,910
Other current liabilities	441	24
Total current liabilities	25,740	23,229
DEFERRED REVENUE	3,241	2,403
RETIREMENT PLAN BENEFIT LIABILITY	9,984	9,436
Total liabilities	38,965	35,068
COMMITMENTS AND CONTINGENCIES (Note 12)	'	'
SHAREHOLDERS' EQUITY:	'	'
Preferred Stock, par value $0.01 per share, 5,000,000 shares authorized, 200,000 shares of Series A Nonconvertible Preferred Stock issued and outstanding (liquidation value of $7.50 per share or $1,500)	2	2
Common Stock, par value $0.01 per share, 100,000,000 shares authorized, 46,899,849 and 46,825,168 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	469	468
Additional paid-in capital	575,454	572,401
Accumulated deficit	-105,716	-130,159
Accumulated other comprehensive loss	-4,147	-4,368
Treasury stock, at cost (636,301 and 401,501 shares at June 30, 2014 and December 31, 2013, respectively)	-17,658	-10,658
Total shareholders’ equity	448,404	427,686
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$487,369	$462,754

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$23,693,000	$22,756,000
Finite-Lived Intangible Assets, Accumulated Amortization	38,339,000	32,841,000
Shareholders' Equity	'	'
Preferred Stock, par value (in dollars per share)	$0.01	$0.01
Preferred Stock, shares authorized ( in shares)	5,000,000	5,000,000
Common Stock, par value (in dollars per share)	$0.01	$0.01
Common Stock, shares authorized (in shares)	100,000,000	100,000,000
Common Stock, shares issued (in shares)	46,899,849	46,825,168
Common Stock, shares outstanding (in shares)	46,899,849	46,825,168
Treasury Stock	'	'
Treasury stock, at cost	636,301	401,501
Series A Nonconvertible Preferred Stock [Member]	'	'
Shareholders' Equity A Nonconvertible Preferred Stock	'	'
Preferred Stock, shares issued (in shares)	200,000	200,000
Preferred Stock, shares outstanding (in shares)	200,000	200,000
Preferred Stock, liquidation value per share (in dollars per share)	$7.50	$7.50
Preferred Stock, liquidation value	$1,500,000	$1,500,000

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
REVENUE:	'	'	'	'
Material sales	$35,926	$27,137	$71,252	$39,889
Royalty and license fees	28,064	21,201	29,843	22,500
Technology development and support revenue	137	1,021	870	1,946
Total revenue	64,127	49,359	101,965	64,335
OPERATING EXPENSES:	'	'	'	'
Cost of material sales	11,951	8,282	21,848	11,374
Research and development	10,544	7,316	20,700	16,254
Selling, general and administrative	6,545	6,336	12,975	11,507
Patent costs and amortization of acquired technology	4,748	4,522	8,721	9,139
Royalty and license expense	1,501	1,172	2,257	1,484
Total operating expenses	35,289	27,628	66,501	49,758
Operating income	28,838	21,731	35,464	14,577
INTEREST INCOME	193	178	411	388
INTEREST EXPENSE	-21	-10	-37	-18
INCOME BEFORE INCOME TAXES	29,010	21,899	35,838	14,947
INCOME TAX EXPENSE	-8,588	-6,517	-11,395	-4,323
NET INCOME	$20,422	$15,382	$24,443	$10,624
NET INCOME PER COMMON SHARE:	'	'	'	'
Basic (in dollars per share)	$0.44	$0.34	$0.53	$0.23
Diluted (in dollars per share)	$0.44	$0.33	$0.52	$0.23
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET INCOME PER COMMON SHARE:	'	'	'	'
Weighted average common shares outstanding - Basic (in shares)	46,266,142	45,859,286	46,222,146	45,841,446
Weighted average common shares outstanding - Diluted (in shares)	46,614,726	46,496,120	46,632,982	46,523,540

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$20,422	$15,382	$24,443	$10,624
OTHER COMPREHENSIVE INCOME, NET OF TAX:	'	'	'	'
Unrealized gain on available-for-sale securities, net of tax of $6, none, $21 and none, respectively	25	39	37	36
Employee benefit plan:	'	'	'	'
Actuarial gain on retirement plan, net of tax of none for all periods presented	0	24	0	47
Amortization of prior service cost and actuarial loss for retirement plan included in net periodic pension costs, net of tax of $52, none, $108 and none, respectively	142	146	184	292
Net change for employee benefit plan	142	170	184	339
TOTAL OTHER COMPREHENSIVE INCOME	167	209	221	375
COMPREHENSIVE INCOME	20,589	15,591	24,664	10,999
Unrealized gain on available-for-sale securities, tax	6	0	21	0
Actuarial gain on retirement plan, tax	0	0	0	0
Amortization of prior service cost and actuarial loss for retirement plan included in net periodic pension costs, tax	$52	$0	$108	$0

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income Loss [Member]	Treasury Stock [Member]	Series A Nonconvertible Preferred Stock [Member]
In Thousands, except Share data, unless otherwise specified							Preferred Stock [Member]
BALANCE at Dec. 31, 2013	$427,686	$468	$572,401	($130,159)	($4,368)	($10,658)	$2
BALANCE (in shares) at Dec. 31, 2013	'	46,825,168	'	'	'	401,501	200,000
Increase (Decrease) in Shareholders' Equity [Roll Forward]	'	'	'	'	'	'	'
Net income	24,443	'	'	24,443	'	'	'
Other comprehensive income	221	'	'	'	221	'	'
Repurchase of common stock, shares	'	'	'	'	'	234,800	'
Repurchase of common stock	-7,000	'	'	'	'	-7,000	'
Exercise of common stock options, shares	'	42,597	'	'	'	'	'
Exercise of common stock options	664	1	663	'	'	'	'
Issuance of common stock to employees, shares	'	82,534	'	'	'	'	'
Issuance of common stock to employees	4,272	1	4,271	'	'	'	'
Shares withheld for employee taxes, shares	'	-83,385	'	'	'	'	'
Shares withheld for employee taxes	-2,830	-1	-2,829	'	'	'	'
Issuance of common stock to Board of Directors and Scientific Advisory Board Shares	'	26,984	'	'	'	'	'
Issuance of common stock to Board of Directors and Scientific Advisory Board Value	786	0	786	'	'	'	'
Issuance of common stock to employees under an Employee Stock Purchase Plan (ESPP) (in shares)	'	5,951	'	'	'	'	'
Issuance of common stock to employees under an ESPP	162	0	162	'	'	'	'
BALANCE at Jun. 30, 2014	$448,404	$469	$575,454	($105,716)	($4,147)	($17,658)	$2
BALANCE (in shares) at Jun. 30, 2014	'	46,899,849	'	'	'	636,301	200,000

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Statement of Cash Flows [Abstract]	'	'
Net income	$24,443	$10,624
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Amortization of deferred revenue	-1,669	-1,835
Depreciation	937	985
Amortization of intangibles	5,498	5,483
Amortization of premium and discount on investments, net	-269	-219
Stock-based compensation to employees	3,526	2,935
Stock-based compensation to Board of Directors and Scientific Advisory Board	463	394
Deferred income tax benefit	6,833	0
Retirement plan benefit expense	838	834
(Increase) decrease in assets:	'	'
Accounts receivable	-4,843	-5,794
Inventory	-10,069	2,345
Other current assets	-6,451	-2,313
Other assets	-252	2
Increase (decrease) in liabilities:	'	'
Accounts payable and accrued expenses	1,914	-186
Other current liabilities	417	904
Deferred revenue	3,692	1,376
Net cash provided by operating activities	25,008	15,535
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Purchases of property and equipment	-2,951	-2,435
Additions to intangibles	0	-107
Purchases of investments	-183,688	-185,314
Proceeds from sale of investments	175,603	175,093
Net cash used in investing activities	-11,036	-12,763
CASH FLOWS FROM INVESTING ACTIVITIES:	'	'
Proceeds from issuance of common stock under ESPP	162	177
Repurchase of common stock	-7,000	-5,456
Proceeds from the exercise of common stock options	664	271
Payment of withholding taxes related to stock-based compensation to employees	-2,830	-2,985
Net cash used in financing activities	-9,004	-7,993
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	4,968	-5,221
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	70,586	85,923
CASH AND CASH EQUIVALENTS, END OF PERIOD	$75,554	$80,702

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) Non-Cash Activities (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Other Significant Noncash Transactions [Line Items]	'	'
Unrealized loss on available-for-sale securities	$58	$36
Common stock issued to Board of Directors and Scientific Advisory Board that was earned and accrued for in a previous period	'	'
Other Significant Noncash Transactions [Line Items]	'	'
Other significant noncash transactions	323	300
Common stock issued to employees that was earned and accrued for in a previous period	'	'
Other Significant Noncash Transactions [Line Items]	'	'
Other significant noncash transactions	746	282
Net change in accounts payable and accrued expenses related to purchases of property and equipment	'	'
Other Significant Noncash Transactions [Line Items]	'	'
Other significant noncash transactions	$64	$891

BUSINESS

BUSINESS	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
BUSINESS	'
	1	BUSINESS:
	Universal Display Corporation (the Company) is a leader in the research, development and commercialization of organic light emitting diode (OLED) technologies and materials. OLEDs are thin, lightweight and power-efficient solid-state devices that emit light, making them highly suitable for use in full-color displays and as lighting products. OLED displays are capturing a growing share of the display market. The Company believes this is because OLEDs offer potential advantages over competing display technologies with respect to power efficiency, contrast ratio, viewing angle, video response time, form factor and manufacturing cost. The Company also believes that OLED lighting products have the potential to replace many existing light sources in the future because of their high power efficiency, excellent color rendering index, low operating temperature and novel form factor. The Company's technology leadership and intellectual property position should enable it to share in the revenues from OLED displays and lighting products as they enter mainstream consumer and other markets.
	The Company's primary business strategy is to (1) further develop and license its proprietary OLED technologies to manufacturers of products for display applications, such as cell phones, portable media devices, wearables, tablets, laptop computers and televisions, and specialty and general lighting products; and (2) develop new OLED materials and sell the materials to those product manufacturers. Through the Company's internal research and development efforts, its relationships with world-class partners such as Princeton University (Princeton), the University of Southern California (USC), the University of Michigan (Michigan) and PPG Industries, Inc. (PPG Industries), and acquisitions of patents and patent applications, the Company has established a significant portfolio of proprietary OLED technologies and materials. The Company currently owns, exclusively licenses or has the sole right to sublicense more than 3,000 patents issued and pending worldwide.
	The Company sells its proprietary OLED materials to customers for evaluation and use in commercial OLED products. The Company also enters into agreements with manufacturers of OLED display and lighting products under which it grants them licenses to practice under its patents and to use the Company's proprietary know-how. At the same time, the Company works with these and other companies who are evaluating the Company's OLED technologies and materials for possible use in commercial OLED display and lighting products.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	2	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:
	Interim Financial Information
	In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position as of June 30, 2014 and results of operations for the three and six months ended June 30, 2014 and 2013, and cash flows for the six months ended June 30, 2014 and 2013. While management believes that the disclosures presented are adequate to make the information not misleading, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto in the Company’s latest year-end financial statements, which are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. The results of the Company’s operations for any interim period are not necessarily indicative of the results of operations for any other interim period or for the full year.
	Principles of Consolidation
	The consolidated financial statements include the accounts of Universal Display Corporation and its wholly owned subsidiaries, UDC, Inc., UDC Ireland Limited, Universal Display Corporation Hong Kong, Ltd., Universal Display Corporation Korea, Y.H., and Universal Display Corporation Japan, G.K. All intercompany transactions and accounts have been eliminated.
	Management’s Use of Estimates
	The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The estimates made are principally in the areas of revenue recognition for license agreements, the useful life of acquired technology, the valuation of the Company's convertible promissory note investments, income taxes including realization of deferred tax assets, stock-based compensation and retirement benefit plan liabilities. Actual results could differ from those estimates.
	Fair Value of Financial Instruments
	The carrying values of accounts receivable, other current assets, and accounts payable approximate fair value in the accompanying financial statements due to the short-term nature of those instruments. The Company’s other financial instruments, which include cash equivalents and investments are carried at fair value as noted above.
	Revenue Recognition and Deferred Revenue
	Material sales relate to the Company’s sale of its OLED materials for incorporation into its customers’ commercial OLED products or for their OLED development and evaluation activities. Material sales are recognized at the time of shipment or at time of delivery, and passage of title, depending upon the contractual agreement between the parties.
	The Company receives license and royalty payments under certain commercial, development and technology evaluation agreements, some of which are non-refundable advances. These payments may include royalty and license fees made pursuant to license agreements and also license fees included as part of certain commercial supply agreements. Amounts deferred are classified as current and non-current based upon current contractual remaining terms. As of June 30, 2014, $6.3 million was recorded as deferred revenue, none of which is creditable against future commercial license agreements that have not yet been executed or deemed effective. For arrangements with extended payment terms where the fee is not fixed and determinable, the Company recognizes revenue when the payment is due and payable. Royalty revenue and license fees included as part of commercial supply agreements are recognized when earned and the amount is fixed and determinable.
	Technology development and support revenue is revenue earned from government contracts, development and technology evaluation agreements and commercialization assistance fees, which includes reimbursements by government entities for all or a portion of the research and development costs the Company incurs in relation to its government contracts. Revenues are recognized proportionally as research and development costs are incurred, or as defined milestones are achieved.
	Currently, the Company's most significant commercial license agreement, which runs through the end of 2017, is with Samsung Display Co., Ltd. (SDC) and covers the manufacture and sale of specified OLED display products. Under this agreement, the Company is being paid a license fee, payable in semi-annual installments over the agreement term of 6.4 years. The installments, which are due in the second and fourth quarter of each year, increase on an annual basis over the term of the agreement. The agreement conveys to SDC the non-exclusive right to use certain of the Company's intellectual property assets for a limited period of time that is less than the estimated life of the assets. Ratable recognition of revenue is impacted by the agreement's extended increasing payment terms in light of the Company's limited history with similar agreements. As a result, revenue is recognized at the lesser of the proportional performance approach (ratable) and the amount of due and payable fees from SDC. Given the increasing contractual payment schedule, license fees under the agreement are recognized as revenue when they become due and payable, which is currently scheduled to be in the second and fourth quarter of each year.
	The Company records taxes billed to customers and remitted to various governmental entities on a gross basis in both revenues and cost of material sales in the consolidated statements of income. The amounts of these pass through taxes reflected in revenues and cost of material sales were $3.0 million and $3.2 million for the three and six months ended June 30, 2014, respectively, and $30,000 and $125,000 for the three and six months ended June 30, 2013, respectively.
	Cost of Material Sales
	Cost of material sales represents costs associated with the sale of materials that have been classified as commercial, including shipping costs. Commercial materials are materials that have been validated by the Company for use in commercial OLED products. Prior to their designation as commercial materials, costs incurred related to the materials are included in research and development costs.
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (FASB) issued a new revenue recognition standard entitled “Revenue from Contracts with Customers.”  The objective of the standard is to establish the principles that an entity shall apply to report useful information to users of financial statements about the nature, amount, timing, and uncertainty of revenue and cash flows from a contract with a customer.  The standard is effective for annual reporting periods beginning after December 15, 2016, which for the Company will commence with the year beginning January 1, 2017.  Earlier application is not permitted.  The standard allows for either “full retrospective” adoption, meaning the standard is applied to all periods presented, or “modified retrospective” adoption, meaning the standard is applied only to the most current period presented in the financial statements.  The Company is currently assessing which method it will choose for adoption, and is evaluating the impact of the adoption of this new accounting standard on its consolidated results of operations and financial position.
	In July 2013, the FASB issued Accounting Standards Update (ASU) No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU No. 2013-11 requires presentation of an unrecognized tax benefit in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit would be presented in the financial statements as a liability and would not be combined with deferred tax assets. This guidance is effective for annual reporting periods beginning after December 15, 2013 and interim periods within those years. The Company adopted this guidance in the first quarter of 2014, and such adoption did not have a material impact on the Company’s consolidated financial position or results of operations.

CASH_CASH_EQUIVALENTS_AND_INVE

CASH, CASH EQUIVALENTS AND INVESTMENTS	6 Months Ended
	Jun. 30, 2014
Cash and Cash Equivalents [Abstract]	'
CASH, CASH EQUIVALENTS AND INVESTMENTS	'
	3	CASH, CASH EQUIVALENTS AND INVESTMENTS:
	The Company considers all highly liquid debt instruments purchased with an original maturity of three months or less to be cash equivalents. The Company classifies its remaining investments as available-for-sale. These securities are carried at fair market value, with unrealized gains and losses reported in shareholders’ equity. Gains or losses on securities sold are based on the specific identification method. Investments as of June 30, 2014 and December 31, 2013 consisted of the following (in thousands):
			Amortized		Unrealized					Aggregate Fair
	Investment Classification		Cost		Gains		(Losses)			Market Value
	June 30, 2014
	Certificates of deposit		$	10,985	$	7	$	(11	)	$	10,981
	Corporate bonds		203,841		40		(6		)	203,875
	U.S. Government bonds		2,998		—		(1		)	2,997
	Convertible notes		—		—		—			—
			$	217,824	$	47	$	(18	)	$	217,853
	December 31, 2013
	Certificates of deposit		$	11,358	$	2	$	(16	)	$	11,344
	Corporate bonds		190,738		33		(48		)	190,723
	U.S. Government bonds		3,074		—		—			3,074
	Convertible notes		4,300		—		—			4,300
			$	209,470	$	35	$	(64	)	$	209,441
	On July 13, 2012, the Company entered into a joint development agreement with Plextronics, Inc. (Plextronics), a private company engaged in printed solar, lighting and other electronics related research and development. The Company invested $4.0 million in Plextronics through the purchase of a convertible promissory note. The note accrued interest at the rate of 3% per year. The note was repaid in full during the first quarter of 2014. See Fair Value Measurements below for additional information regarding the note.
	On July 17, 2012, the Company invested $300,000 in a private company engaged in plasma processing equipment research and development through the purchase of a convertible promissory note. The note accrued interest at the rate of 5% per year. The note was repaid in full during the second quarter of 2014. See Fair Value Measurements below for additional information regarding the note.
	All short-term investments held at June 30, 2014 will mature within one year.

FAIR_VALUE_MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE MEASUREMENTS	'
	4	FAIR VALUE MEASUREMENTS:
	The following table provides the assets and liabilities carried at fair value measured on a recurring basis as of June 30, 2014 (in thousands):
						Fair Value Measurements, Using
			Total carrying value as of June 30, 2014			Quoted prices in active markets (Level 1)			Significant other observable inputs		Significant unobservable inputs
									(Level 2)		(Level 3)
	Cash equivalents		$	27,932		$	27,932		$	—	$	—
	Short-term investments		215,331			215,331			—		—
	Long-term investments		2,522			2,522			—		—
	The following table provides the assets and liabilities carried at fair value measured on a recurring basis as of December 31, 2013 (in thousands):
						Fair Value Measurements, Using
			Total carrying value as of December 31, 2013			Quoted prices in active markets  (Level 1)			Significant other observable inputs		Significant unobservable inputs
									(Level 2)		(Level 3)
	Cash equivalents		$	7,600		$	7,600		$	—	$	—
	Short-term investments		202,024			202,024			—		—
	Long-term investments		7,417			3,117			—		4,300
	Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3 inputs are unobservable inputs based on management’s own assumptions used to measure assets and liabilities at fair value. A financial asset's or liability’s classification is determined based on the lowest level input that is significant to the fair value measurement.
	The Company's convertible promissory note investments (see Note 3) are currently classified within investments on the consolidated balance sheet and the fair value is based on Level 3 inputs.
	These convertible promissory note investments are inherently risky as the notes lack a ready market for resale and the note issuer's success is dependent on numerous factors, including, among others, product development, market acceptance, operational efficiency, the ability of the investee companies to raise additional funds in financial markets that can be volatile, and other key business factors. The Company determines the fair value of its convertible promissory note investments portfolio quarterly by performing certain quantitative and qualitative analyses of identified events or circumstances affecting the investee.
	Changes in fair value of the investments are recorded as unrealized gains and losses in other comprehensive income. If a decline in fair value of a convertible promissory note investment below its carrying value is deemed to be other than temporary, the amortized cost basis of the Company’s investment will be written down by the amount of the other-than-temporary impairment with a resulting charge to net income. There were no other-than-temporary impairments of investments as of June 30, 2014.
	The following table is a reconciliation of the changes in fair value of the Company’s investments in convertible notes for the three and six months ended June 30, 2014, which had been classified in Level 3 in the fair value hierarchy (in thousands):
			Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	Fair value of notes, beginning of period		$	300		$	4,300
	Repayment of notes		(300		)	(4,300		)
	Fair value of notes, end of period		$	—		$	—

RESEARCH_AND_LICENSE_AGREEMENT

RESEARCH AND LICENSE AGREEMENTS WITH PRINCETON UNIVERSITY, UNIVERSITY OF SOUTHERN CALIFORNIA AND THE UNIVERSITY OF MICHIGAN	6 Months Ended
	Jun. 30, 2014
Research and Development [Abstract]	'
RESEARCH AND LICENSE AGREEMENTS WITH PRINCETON UNIVERSITY, UNIVERSITY OF SOUTHERN CALIFORNIA AND THE UNIVERSITY OF MICHIGAN	'
	5	RESEARCH AND LICENSE AGREEMENTS WITH PRINCETON UNIVERSITY, UNIVERSITY OF SOUTHERN CALIFORNIA AND THE UNIVERSITY OF MICHIGAN:
	The Company funded OLED technology research at Princeton and, on a subcontractor basis, at USC for 10 years under a Research Agreement executed with Princeton in August 1997 (the 1997 Research Agreement). The principal investigator conducting work under the 1997 Research Agreement transferred to Michigan in January 2006. Following this transfer, the 1997 Research Agreement was allowed to expire on July 31, 2007.
	As a result of the transfer, the Company entered into a new Sponsored Research Agreement with USC to sponsor OLED technology research at USC and, on a subcontractor basis, Michigan. This new Sponsored Research Agreement (as amended, the 2006 Research Agreement) was effective as of May 1, 2006 and had an original term of three years. On May 1, 2009, the Company amended the 2006 Research Agreement to extend the term of the agreement for an additional four years. The 2006 Research Agreement superseded the 1997 Research Agreement with respect to all work being performed at USC and Michigan. Payments under the 2006 Research Agreement were made to USC on a quarterly basis as actual expenses were incurred. The Company incurred a total of $5.0 million in research and development expense for work performed under the 2006 Research Agreement during the extended term, which ended on April 30, 2013.
	Effective June 1, 2013, the Company amended the 2006 Research Agreement again to extend the term of the agreement for an additional four years. As of June 30, 2014, the Company was obligated to pay USC up to $7.3 million for work to be actually performed during the remaining extended term, which expires April 30, 2017. From June 1, 2013 through June 30, 2014, the Company incurred $1.3 million in research and development expense for work performed under the 2006 Research Agreement.
	On October 9, 1997, the Company, Princeton and USC entered into an Amended License Agreement (as amended, the 1997 Amended License Agreement) under which Princeton and USC granted the Company worldwide, exclusive license rights, with rights to sublicense, to make, have made, use, lease and/or sell products and to practice processes based on patent applications and issued patents arising out of work performed by Princeton and USC under the 1997 Research Agreement. Under this 1997 Amended License Agreement, the Company is required to pay Princeton royalties for licensed products sold by the Company or its sublicensees. For licensed products sold by the Company, the Company is required to pay Princeton 3% of the net sales price of these products. For licensed products sold by the Company’s sublicensees, the Company is required to pay Princeton 3% of the revenues received by the Company from these sublicensees. These royalty rates are subject to renegotiation for products not reasonably conceivable as arising out of the 1997 Research Agreement if Princeton reasonably determines that the royalty rates payable with respect to these products are not fair and competitive.
	The Company is obligated, under the 1997 Amended License Agreement, to pay to Princeton minimum annual royalties. The minimum royalty payment is $100,000 per year. The Company recorded royalty expense in connection with this agreement of $1.5 million and $1.2 million for the three months ended June 30, 2014 and 2013, respectively, and $2.2 million and $1.5 million for the six months ended June 30, 2014 and 2013, respectively.
	The Company also is required, under the 1997 Amended License Agreement, to use commercially reasonable efforts to bring the licensed OLED technology to market. However, this requirement is deemed satisfied if the Company invests a minimum of $800,000 per year in research, development, commercialization or patenting efforts respecting the patent rights licensed to the Company.
	In connection with entering into the 2006 Research Agreement, the Company amended the 1997 Amended License Agreement to include Michigan as a party to that agreement effective as of January 1, 2006. Under this amendment, Princeton, USC and Michigan have granted the Company a worldwide exclusive license, with rights to sublicense, to make, have made, use, lease and/or sell products and to practice processes based on patent applications and issued patents arising out of work performed under the 2006 Research Agreement. The financial terms of the 1997 Amended License Agreement were not impacted by this amendment.

ACQUIRED_TECHNOLOGY

ACQUIRED TECHNOLOGY	6 Months Ended
	Jun. 30, 2014
Finite-Lived Intangible Assets, Net [Abstract]	'
ACQUIRED TECHNOLOGY	'
	6	ACQUIRED TECHNOLOGY:
	Acquired technology consists of acquired license rights for patents and know-how obtained from PD-LD, Inc., Motorola and Fujifilm. These intangible assets consist of the following (in thousands):
			30-Jun-14
	PD-LD, Inc.		$	1,481
	Motorola		15,909
	Fujifilm		109,462
			126,852
	Less: Accumulated amortization		(38,339		)
	Acquired technology, net		$	88,513
	Amortization expense for all intangible assets was $2.7 million for both the three months ended June 30, 2014 and 2013, and $5.5 million for both the six months ended June 30, 2014 and 2013. Amortization expense is included in the patent costs and amortization of acquired technology expense line item on the Consolidated Statements of Income.
	Motorola Patent Acquisition
	In 2000, the Company entered into a royalty-bearing license agreement with Motorola whereby Motorola granted the Company perpetual license rights to what are now 74 issued U.S. patents relating to Motorola’s OLED technologies, together with foreign counterparts in various countries. These patents expire in the U.S. between 2014 and 2018.
	On March 9, 2011, the Company purchased these patents from Motorola, including all existing and future claims and causes of action for any infringement of the patents, pursuant to a Patent Purchase Agreement. The Patent Purchase Agreement effectively terminated the Company’s license agreement with Motorola, including any obligation to make royalty payments to Motorola.
	The technology acquired from Motorola is being amortized over a period of 7.5 years.
	Fujifilm Patent Acquisition
	On July 23, 2012, the Company entered into a Patent Sale Agreement (the Agreement) with Fujifilm. Under the Agreement, Fujifilm sold more than 1,200 OLED-related patents and patent applications in exchange for a cash payment of $105.0 million. The Company recorded the $105.0 million plus $4.5 million of costs as acquired technology, which is being amortized over a period of 10 years.

EQUITY_AND_CASH_COMPENSATION_U

EQUITY AND CASH COMPENSATION UNDER THE PPG AGREEMENTS	6 Months Ended
	Jun. 30, 2014
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]	'
EQUITY AND CASH COMPENSATION UNDER THE PPG INDUSTRIES AGREEMENTS	'
	7	EQUITY AND CASH COMPENSATION UNDER THE PPG AGREEMENTS:
	On October 1, 2000, the Company entered into a five-year Development and License Agreement (the Development Agreement) and a seven-year Supply Agreement (the Supply Agreement) with PPG Industries. Under the Development Agreement, a team of PPG Industries scientists and engineers assisted the Company in developing its proprietary OLED materials and supplied the Company with these materials for evaluation purposes. Under the Supply Agreement, PPG Industries supplied the Company with its proprietary OLED materials that were intended for resale to customers for commercial purposes.
	On July 29, 2005, the Company entered into an OLED Materials Supply and Service Agreement with PPG Industries (the OLED Materials Agreement). The OLED Materials Agreement superseded and replaced in their entireties the Development Agreement and Supply Agreement effective as of January 1, 2006, and extended the term of the Company’s relationship with PPG Industries through December 31, 2009. The term of the OLED Materials Agreement was subsequently extended through December 31, 2014.
	On September 22, 2011, the Company entered into an Amended and Restated OLED Materials Supply and Service Agreement with PPG Industries (the New OLED Materials Agreement), which replaced the original OLED Materials Agreement with PPG Industries effective as of October 1, 2011. The term of the New OLED Materials Agreement runs through December 31, 2015 and shall be automatically renewed for additional one year terms, unless terminated by the Company by providing prior notice of one year or terminated by PPG by providing prior notice of two years. The New OLED Materials Agreement contains provisions that are substantially similar to those of the original OLED Materials Agreement. Under the New OLED Materials Agreement, PPG Industries continues to assist the Company in developing its proprietary OLED materials and supplying the Company with those materials for evaluation purposes and for resale to its customers.
	Under the New OLED Materials Agreement, the Company compensates PPG Industries on a cost-plus basis for the services provided during each calendar quarter. The Company is required to pay for some of these services in all cash. Up to 50% of the remaining services are payable, at the Company’s sole discretion, in cash or shares of the Company’s common stock, with the balance payable in cash. The actual number of shares of common stock issuable to PPG Industries is determined based on the average closing price for the Company’s common stock during a specified number of days prior to the end of each calendar half-year period ending on March 31 and September 30. If, however, this average closing price is less than $20.00, the Company is required to compensate PPG Industries in cash.
	The Company is also to reimburse PPG Industries for raw materials used for research and development. The Company records the purchases of these raw materials as a current asset until such materials are used for research and development efforts.
	The Company recorded research and development expense of $3.7 million and $1.0 million for the three months ended June 30, 2014 and 2013, respectively, and $7.2 million and $3.3 million for the six months ended June 30, 2014 and 2013, respectively, in relation to the cash portion of the reimbursement of expenses and work performed by PPG Industries, excluding amounts paid for commercial chemicals. No shares were issued for services to PPG for the three or six months ended June 30, 2014 or 2013, respectively.

SHAREHOLDERS_EQUITY

SHAREHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
SHAREHOLDERS EQUITY	'
	8	SHAREHOLDERS’ EQUITY:
	Stock Repurchase Program
	On June 2, 2014, the Company's Board of Directors approved a stock repurchase program authorizing the Company to purchase shares of its common stock up to a total purchase price of $50.0 million over the subsequent 12 months. During the three months ended June 30, 2014 the Company purchased 234,800 shares at a cost of approximately $7.0 million.
	Scientific Advisory Board, Board of Directors and Employee Awards
	During the first quarter of 2014 and 2013, the Company granted a total of 31,301 and 22,568 shares, respectively, of fully vested common stock to employees, members of the Board of Directors and non-employee members of the Scientific Advisory Board for services performed in 2013 and 2012, respectively. The fair value of the shares issued was $746,000 and $435,000, respectively, for employees and $323,000 and $300,000, respectively, for members of the Board of Directors and non-employee members of the Scientific Advisory Board, which amounts were accrued at December 31, 2013 and 2012, respectively. In connection with the issuance of these grants, 8,071 and 4,672 shares, respectively, with fair values of $271,000 and $154,000, respectively, were withheld in satisfaction of employee tax withholding obligations in 2014 and 2013.

ACCUMULATED_OTHER_COMPREHENSIV

ACCUMULATED OTHER COMPREHENSIVE LOSS	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Accumulated Other Comprehensive Loss	'
	9	ACCUMULATED OTHER COMPREHENSIVE LOSS:
	Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
			Unrealized gain (loss) on marketable securities			Net unrealized loss on retirement plan (2)			Total			Affected line items in the consolidated statements of income
	Balance December 31, 2013, net of tax		$	(24	)	$	(4,344	)	$	(4,368	)
	Other comprehensive income before reclassification		37			—			37
	Reclassification to net income (1)		—			184			184			Selling, general and administrative and research and development
	Change during period		37			184			221
	Balance June 30, 2014, net of tax		$	13		$	(4,160	)	$	(4,147	)
			Unrealized gain (loss) on marketable securities			Net unrealized loss on retirement plan (2)			Total			Affected line items in the consolidated statements of income
	Balance December 31, 2012, net of tax		$	(18	)	$	(5,684	)	$	(5,702	)
	Other comprehensive loss before reclassification		36			—			36
	Reclassification to net loss (1)		—			339			339			Selling, general and administrative and research and development
	Change during period		36			339			375
	Balance June 30, 2013, net of tax		$	18		$	(5,345	)	$	(5,327	)
	_______________________________________________
	(1) The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $184,000 and $339,000 for the six months ended June 30, 2014 and 2013, respectively.
	(2) Refer to Note 11: Supplemental Executive Retirement Plan.

STOCKBASED_COMPENSATION

STOCK-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
STOCK-BASED COMPENSATION	'
	10	STOCK-BASED COMPENSATION:
	The Company recognizes in the statements of income the grant-date fair value of equity based awards such as shares issued under employee stock purchase plans, restricted stock awards, restricted stock units and performance unit awards issued to employees and directors.
	The grant-date fair value of stock awards is based on the closing price of the stock on the date of grant. The fair value of share-based awards is recognized as compensation expense on a straight-line basis over the requisite service period, net of forfeitures. The Company issues new shares upon the respective grant, exercise or vesting of share-based payment awards, as applicable.
	Performance unit awards are subject to either a performance-based or market-based vesting requirement. For performance-based vesting, the grant-date fair value of the award, based on fair value of the Company's common stock, is recognized over the service period, based on an assessment of the likelihood that the applicable performance goals will be achieved and compensation expense is periodically adjusted based on actual and expected performance. Compensation expense for performance unit awards with market-based vesting is calculated based on the estimated fair value as of the grant date utilizing a Monte Carlo simulation model and is recognized over the service period on a straight-line basis.
	Equity Compensation Plan
	In 1995, the Board of Directors of the Company adopted a stock option plan, which was amended and restated in 2003 and is now called the Equity Compensation Plan. The Equity Compensation Plan provides for the granting of incentive and nonqualified stock options, shares of common stock, stock appreciation rights and performance units to employees, directors and consultants of the Company. Stock options are exercisable over periods determined by the Compensation Committee, but for no longer than 10 years from the grant date. Through June 30, 2014, the Company’s shareholders have approved increases in the number of shares reserved for issuance under the Equity Compensation Plan to 10,500,000, and have extended the term of the plan through 2024. At June 30, 2014, there were 3,589,154 shares that remained available to be granted under the Equity Compensation Plan. See the Company's Form 8-K filed on June 19, 2014 for more information regarding changes to the Equity Compensation Plan.
	Stock Awards
	Restricted Stock Awards and Units
	The Company has issued restricted stock awards and units to employees and non-employee members of the Scientific Advisory Board with vesting terms of one to six years. The fair value is equal to the market price of the Company’s common stock on the date of grant for awards granted to employees and equal to the market price at the end of the reporting period for unvested non-employee awards or upon the date of vesting for vested non-employee awards. Expense for restricted stock awards and units is amortized ratably over the vesting period for the awards issued to employees and using a graded vesting method for the awards issued to non-employee members of the Scientific Advisory Board.
	During the six months ended June 30, 2014, the Company granted 59,027 shares of restricted stock awards and restricted stock units to employees and non-employee members of the Scientific Advisory Board, which had a total fair value of $2.0 million on the respective dates of grant, and will vest over two to three years from the date of grant, provided that the grantee is still an employee of the Company on the applicable vesting date.
	For the three months ended June 30, 2014 and 2013, the Company recorded, as compensation charges related to all restricted stock awards and units, selling, general and administrative expense of $914,000 and $1.1 million, respectively, and research and development expense of $409,000 and $417,000, respectively. For the six months ended June 30, 2014 and 2013, the Company recorded, as compensation charges related to all restricted stock awards and units, selling, general and administrative expense of $1.8 million and $1.9 million, respectively, and research and development expense of $783,000 and $744,000 respectively.
	In connection with the vesting of restricted stock awards and units during the six months ended June 30, 2014 and 2013, respectively, 75,314 and 94,087 shares, with aggregate fair values of $2.6 million and $3.0 million, respectively, were withheld in satisfaction of tax withholding obligations.
	For the three months ended June 30, 2014 and 2013, the Company recorded as compensation charges related to all restricted stock awards and units to non-employee members of the Scientific Advisory Board, research and development expense of $57,000 and $44,000, respectively. For the six months ended June 30, 2014 and 2013, the Company recorded as compensation charges related to all restricted stock awards and units to non-employee members of the Scientific Advisory Board, research and development expense of $100,000 and $130,000, respectively.
	Board of Directors Compensation
	The Company has granted restricted stock units to non-employee members of the Board of Directors with vesting terms of approximately one year. The fair value is equal to the market price of the Company's common stock on the date of grant. The restricted stock units are issued and expense is recognized ratably over the vesting period. For the three months ended June 30, 2014 and 2013, the Company recorded compensation charges for services performed, related to all restricted stock units granted to non-employee members of the Board of Directors, selling, general and administrative expense of $202,000 and $126,000, respectively. For the six months ended June 30, 2014 and 2013, the Company recorded compensation charges for services performed, related to all restricted stock units granted to non-employee members of the Board of Directors, selling, general and administrative expense of $363,000 and $264,000, respectively. Restricted stock issued during the six months ended June 30, 2014 and 2013 was 11,250 and 10,000 shares, respectively.
	Performance Unit Awards
	During the six months ended June 30, 2014, the Company granted 36,092 performance units, of which 18,044 are subject to a performance-based vesting requirement and 18,048 are subject to a market-based vesting requirement and will vest over the terms described below. Total fair value of the performance unit awards granted was $1.4 million on the date of grant.
	Each performance unit award is subject to both a performance-vesting requirement (either performance-based or market-based) and a service-vesting requirement.
	The performance-based vesting requirement is tied to the Company's cumulative revenue growth compared to the cumulative revenue growth of companies comprising the Nasdaq Electronics Components Index, as measured over a specific performance period. The market-based vesting requirement is tied to the Company's total shareholder return relative to the total shareholder return of companies comprising the Nasdaq Electronics Components Index, as measured over a specific performance period.
	The maximum number of performance units that may vest based on performance is two times the shares granted. Further, if the Company's total shareholder return is negative, the performance units may not vest above the shares granted.
	For the three months ended June 30, 2014 and 2013, the Company recorded general and administrative expense of $198,000 and $137,000, respectively, and research and development expense of $60,000 and $42,000, respectively, related to performance units, respectively.
	For the six months ended June 30, 2014 and 2013, the Company recorded general and administrative expense of $685,000 and $175,000, respectively, and research and development expense of $207,000 and $53,000, respectively, related to performance units, respectively.
	Employee Stock Purchase Plan
	On April 7, 2009, the Board of Directors of the Company adopted an Employee Stock Purchase Plan (ESPP). The ESPP was approved by the Company’s shareholders and became effective on June 25, 2009. The Company has reserved 1,000,000 shares of common stock for issuance under the ESPP. Unless sooner terminated by the Board of Directors, the ESPP will expire when all reserved shares have been issued.
	Eligible employees may elect to contribute to the ESPP through payroll deductions during consecutive three-month purchase periods. Each employee who elects to participate will be deemed to have been granted an option to purchase shares of the Company’s common stock on the first day of the purchase period. Unless the employee opts out during the purchase period, the option will automatically be exercised on the last day of the period, which is the purchase date, based on the employee’s accumulated contributions to the ESPP. The purchase price will equal 85% of the lesser of the price per share of common stock on the first day of the period or the last day of the period.
	Employees may allocate up to 10% of their base compensation to purchase shares of common stock under the ESPP; however, each employee may purchase no more than 12,500 shares on a given purchase date, and no employee may purchase more than $25,000 of common stock under the ESPP during a given calendar year.
	During the six months ended June 30, 2014 and 2013, the Company issued 5,951 and 7,775 shares, respectively, of its common stock under the ESPP, resulting in proceeds of $162,000 and $177,000, respectively.
	For the three months ended June 30, 2014 and 2013, the Company recorded charges of $9,000 and $8,000, respectively, to selling, general and administrative expense and $11,000 and $19,000, respectively, to research and development expense, related to the ESPP equal to the amount of the discount and the value of the look-back feature.
	For the six months ended June 30, 2014 and 2013, the Company recorded charges of $23,000 and $15,000, respectively, to selling, general and administrative expense and $25,000 and $42,000, respectively, to research and development expense, related to the ESPP equal to the amount of the discount and the value of the look-back feature.

SUPPLEMENTAL_EXECUTIVE_RETIREM

SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN	6 Months Ended
	Jun. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN	'
	11	SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN:
	On March 18, 2010, the Compensation Committee and the Board of Directors of the Company approved and adopted the Universal Display Corporation Supplemental Executive Retirement Plan (SERP), effective as of April 1, 2010. The purpose of the SERP, which is unfunded, is to provide certain of the Company’s executive officers with supplemental pension benefits following a cessation of their employment. As of June 30, 2014 there were six participants in the SERP.
	The Company records amounts relating to the SERP based on calculations that incorporate various actuarial and other assumptions, including discount rates, rate of compensation increases, retirement dates and life expectancies. The net periodic costs are recognized as employees render the services necessary to earn the SERP benefits.
	The components of net periodic pension cost were as follows (in thousands):
			Three Months Ended June 30,				Six Months Ended June 30,
			2014		2013		2014		2013
	Service cost		$	167	$	161	$	334	$	323
	Interest cost		106		86		212		172
	Amortization of prior service cost		146		146		292		292
	Amortization of loss		—		24		—		47
	Total net periodic benefit cost		$	419	$	417	$	838	$	834

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	12	COMMITMENTS AND CONTINGENCIES:
	Commitments
	Under the 2006 Research Agreement with USC, the Company is obligated to make certain payments to USC based on work performed by USC under that agreement, and by Michigan under its subcontractor agreement with USC. See Note 5 for further explanation.
	Under the terms of the 1997 Amended License Agreement, the Company is required to make minimum royalty payments to Princeton. See Note 5 for further explanation.
	The Company has agreements with six executive officers which provide for certain cash and other benefits upon termination of employment of the officer in connection with a change in control of the Company. Each executive is entitled to a lump-sum cash payment equal to two times the sum of the average annual base salary and bonus of the officer and immediate vesting of all stock options and other equity awards that may be outstanding at the date of the change in control, among other items.
	Patent Related Challenges and Oppositions
	Each major jurisdiction in the world that issues patents provides both third parties and applicants an opportunity to seek a further review of an issued patent. The specific process for requesting and considering such reviews are specific to the jurisdiction that issued the patent in question, and generally do not include claims for monetary damages or specific claims of infringement. The conclusions made by the reviewing administrative bodies tend to be appealable and generally are limited in scope and applicability to the specific claims and jurisdiction in question.
	The Company believes that opposition proceedings are frequently commenced in the ordinary course of business by third parties who may believe that one or more claims in a patent do not comply with the technical or legal requirements of the specific jurisdiction in which the patent was issued. The Company views these proceedings as reflective of its goal of obtaining the broadest legally permissible patent coverage permitted in each jurisdiction. Once a proceeding is initiated, as a general matter, the issued patent continues to be presumed valid until the jurisdiction’s applicable administrative body issues a final non-appealable decision. Depending on the jurisdiction, the outcome of these proceedings could include affirmation, denial or modification of some or all of the originally issued claims. The Company believes that as OLED technology becomes more established and its patent portfolio increases in size, so will the number of these proceedings.
	Below are summaries of proceedings that have been commenced against certain issued patents that are either exclusively licensed to the Company or which are now assigned to the Company. The Company does not believe that the confirmation, loss or modification of the Company's rights in any individual claim or set of claims that are the subject of the following legal proceedings would have a material impact on the Company's material sales or licensing business or on the Company's consolidated financial statements, including its consolidated statements of income, as a whole. However, as noted within the descriptions, some of the following proceedings involve issued patents that relate to the Company's fundamental phosphorescent OLED technologies and the Company intends to vigorously defend against claims that, in the Company's opinion, seek to restrict or reduce the scope of the originally issued claim, which may require the expenditure of significant amounts of the Company's resources. In certain circumstances, when permitted, the Company may also utilize the proceedings to request modification of the claims to better distinguish the patented invention from any newly identified prior art and/or improve the claim scope of the patent relative to commercially important categories of the invention. The entries marked with an "*" relate to the Company's UniversalPHOLED phosphorescent OLED technology, some of which may be commercialized by the Company.
	Opposition to European Patent No. 0946958
	On December 8, 2006, Cambridge Display Technology Ltd. (CDT), which was acquired in 2007 by Sumitomo Chemical Company (Sumitomo), filed a Notice of Opposition to European Patent No. 0946958 (EP '958 patent), which relates to the Company's FOLED™ flexible OLED technology. The EP '958 patent, which was issued on March 8, 2006, is a European counterpart patent to U.S. patents 5,844,363; 6,602,540; 6,888,306; and 7,247,073. These patents are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	On November 26, 2009, the European Patent Office (the EPO) issued its written decision to reject the opposition and to maintain the patent as granted. On April 12, 2010, CDT filed an appeal to the EPO panel decision. On August 19, 2010, the Company filed a timely response to the EPO panel decision.
	At this time, based on its current knowledge, the Company believes that the EPO panel decision will be upheld on appeal. However, the Company cannot make any assurances of this result.
	Opposition to European Patent No. 1449238*
	In 2007, Sumation Company Limited (Sumation), a joint venture between Sumitomo and CDT, Merck Patent GmbH, of Darmstadt, Germany, and BASF Aktiengesellschaft, of Mannheim, Germany, filed Notices of Opposition to European Patent No 1449238 (EP '238 patent). The EP '238 patent, which was issued on November 2, 2006, is a European counterpart patent, in part, to U.S. patents 6,830,828; 6,902,830; 7,001,536; 7,291,406; 7,537,844; and 7,883,787; and to pending U.S. patent applications 13/009,001, filed on January 19, 2011, and 13/205,290, filed on August 9, 2011 (hereinafter the “U.S. '828 Patent Family”). They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	On January 13, 2012, the EPO issued a decision to maintain the patent with claims directed to OLEDs comprising phosphorescent organometallic iridium compounds.
	All the parties appealed the EPO's panel decision. An Oral Hearing was held in the EPO on November 22, 2013, in which the EPO Appellate Board reversed the decision of the prior panel and revoked the patent in its entirety. The Company intends to continue prosecuting claims directed to the subject matter originally claimed in the ‘238 patent and to overcome the EPO Appellate Board’s objections to the original claim language in pending divisional applications in the EPO which claim priority from the same original priority application.
	Opposition to European Patent No. 1394870*
	On April 20, 2010, Merck Patent GmbH; BASF Schweitz AG of Basel, Switzerland; Osram GmbH of Munich, Germany; Siemens Aktiengesellschaft of Munich, Germany; and Koninklijke Philips Electronics N.V., of Eindhoven, The Netherlands filed Notices of Opposition to European Patent No. 1394870 (the EP '870 patent). The EP '870 patent, which was issued on July 22, 2009, is a European counterpart patent, in part, to U.S. patents 6,303,238; 6,579,632; 6,872,477; 7,279,235; 7,279,237; 7,488,542; 7,563,519; and 7,901,795; and to pending U.S. patent application 13/035,051, filed on February 25, 2011 (hereinafter the “U.S. '238 Patent Family”). They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	An Oral Hearing was held before an EPO panel of first instance in Munich, Germany, on April 8-9, 2014. The panel gave its preliminary decision rejecting the original broad claims and amended the claims to comply with EPO requirements by more narrowly defining the scope of the claims. Based on the outcome of the hearing, the ‘870 patent, in its amended form, was held by the panel to comply with the EPO requirements. A written decision is expected to be issued by the panel in Q3 2014.
	The Company believes the EPO’s decision relating to the broad original claims is erroneous and intends to appeal the ruling to reinstate a broader set of claims. This patent, as originally granted by the EPO, would be deemed valid during the pendency of an appeals process. At this time, based on the Company's current knowledge, the Company believes there is a substantial likelihood that the patent being challenged will be declared valid and that all or a significant portion of the Company's claims will be upheld. However, the Company cannot make any assurances of this result.
	Invalidation Trials in Japan for Japan Patent Nos. 4357781 and 4358168*
	On May 24, 2010, the Company received Notices of Invalidation Trials against Japan Patent Nos. 4357781 (the JP '781 patent) and 4358168 (the JP '168 patent), which were both issued on August 14, 2009. The requests were filed by Semiconductor Energy Laboratory Co., Ltd. (SEL). The JP '781 and JP '168 patents are Japanese counterpart patents, in part, to the above-noted U.S. '828 Patent Family. They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	On March 31, 2011, the Company learned that the Japanese Patent Office (JPO) had issued decisions finding all claims in the JP '781 and JP '168 patents invalid.
	Both parties appealed this matter to the Japanese IP High Court. On November 7, 2012, the Company was notified that the Japanese IP High Court had reversed the JPO's finding of invalidity and remanded the case back to the JPO for further consideration.
	In a decision reported to the Company on April 15, 2013, all claims in the Company's JP '781 and JP '168 patents were upheld as valid by the JPO. The Company's opponent appealed this decision.
	At this time, based on the Company's current knowledge, the Company believes that the claims on the patents should be upheld. However, the Company cannot make any assurances of this result.
	Invalidation Trial in Japan for Japan Patent No. 4511024*
	On June 16, 2011, the Company learned that a Request for an Invalidation Trial was filed in Japan for its Japanese Patent No. JP-4511024 (the JP '024 patent), which issued on May 14, 2010. The Request was filed by SEL, the same opponent as in the above-noted Japanese Invalidation Trials for the JP '781 and JP '168 patents. The JP '024 patent is a counterpart patent, in part, to the U.S. '238 Patent Family, which relate to the EP '870 patent, which is subject to one of the above-noted European oppositions and which relates to the Company's UniversalPHOLED phosphorescent OLED technology. They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	On May 10, 2012, the Company learned that the JPO issued a decision upholding the validity of certain claimed inventions in the JP '024 Patent but invalidating the broadest claims in the patent. The Company appealed the JPO’s decision to the Japanese IP High Court. On October 31, 2013, the Japanese IP High Court ruled that the prior art references relied on by the JPO did not support the JPO’s findings, reversed the JPO’s decision with respect to the previously invalidated broad claims in the JP ‘024 patent and remanded the matter back to the JPO for further consideration consistent with its decision. The JPO subsequently issued a decision upholding the validity of certain claimed inventions in the JP '024 Patent but invalidating the broadest claims in the patent. The Company is appealing the decision to reinstate a broader set of claims. This patent, as originally granted by the JPO, would be deemed valid during the pendency of an appeals process.
	At this time, based on its current knowledge, the Company believes that the patent being challenged should be declared valid and that all or a significant portion of the Company's claims should be upheld. However, the Company cannot make any assurances of this result.
	Opposition to European Patent No. 1252803*
	On July 12 and 13, 2011, Sumitomo, Merck Patent GmbH and BASF SE, of Ludwigshaven, Germany filed oppositions to the Company's European Patent No. 1252803 (the EP '803 patent). The EP '803 patent, which was issued on October 13, 2010, is a European counterpart patent, in part, to the U.S. '828 Patent Family. They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	On December 7, 2012, the EPO rendered a decision at an Oral Hearing wherein it upheld the broadest claim of the granted patent. All three opponents filed an appeal.
	At this time, based on its current knowledge, the Company believes there is a substantial likelihood that the patent being challenged will be declared valid and that all or a significant portion of its claims will be further upheld on appeal. However, the Company cannot make any assurances of this result.
	Opposition to European Patent No. 1390962
	On November 16, 2011, Osram AG and BASF SE each filed a Notice of Opposition to European Patent No. 1390962 (EP '962 patent), which relates to the Company's white phosphorescent OLED technology. The EP '962 patent, which was issued on February 16, 2011, is a European counterpart patent to U.S. patents 7,009,338 and 7,285,907. They are exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	The EPO combined the oppositions into a single opposition proceeding. The Company is awaiting the rescheduling of the hearing by the EPO on this matter.
	At this time, based on its current knowledge, the Company believes there is a substantial likelihood that the patent being challenged will be declared valid, and that all or a significant portion of the Company's claims will be upheld. However, the Company cannot make any assurances of this result.
	Opposition to European Patent No. 1933395*
	On February 24 and 27, 2012, Sumitomo, Merck Patent GmbH and BASF SE filed oppositions to the Company's European Patent No. 1933395 (the EP '395 patent). The EP '395 patent is a counterpart patent to the above-noted JP '168 patent, and, in part, to the U.S. '828 Patent Family. This patent is exclusively licensed to the Company by Princeton, and the Company is required to pay all legal costs and fees associated with this proceeding.
	At an Oral Hearing on October 14, 2013, the EPO panel issued a decision that affirmed the basic invention and broad patent coverage in the EP '395 patent, but narrowed the scope of the original claims.
	On February 26, 2014, the Company appealed the ruling to reinstate a broader set of claims. The patent, as originally granted by the EPO, is deemed to be valid during the pendency of the appeals process. Two of the three opponents also filed their own appeals of the ruling. Sumitomo did not file an appeal within the allotted time, and will therefore no longer be a party to the proceedings.
	In addition to the above proceedings, from time to time, the Company may have other proceedings that are pending which relate to patents the Company acquired as part of the Fuji Patent acquisition or which to relate to technologies that are not currently widely utilized in the marketplace.

CONCENTRATION_OF_RISK

CONCENTRATION OF RISK	6 Months Ended
	Jun. 30, 2014
Risks and Uncertainties [Abstract]	'
CONCENTRATION OF RISK	'
	13	CONCENTRATION OF RISK:
	Included in technology development and support revenue in the accompanying statement of operations is $48,000 and $232,000 for the three months ended June 30, 2014 and 2013, respectively, and $117,000 and $861,000 for the six months ended June 30, 2014 and 2013, respectively, of revenue which was derived from contracts with United States government agencies. Revenues derived from contracts with United States government agencies represented less than 1% of the consolidated revenue for all periods presented.
	Revenues and accounts receivable from the Company's largest non-government customers were as follows (in thousands):
			% of Revenues for the three months ended June 30,			% of Revenues for the six months ended June 30,			Accounts Receivable as of
	Customer		2014		2013	2014		2013	30-Jun-14
	A		62%		73%	52%		65%	$	9,501
	B		16%		19%	22%		20%	$	1,556
	C		14%		5%	18%		8%	$	8,384
	Revenues from outside of North America represented nearly 100% and 99% of the consolidated revenue for the three months ended June 30, 2014 and 2013, respectively, and nearly 100% and 98% of the consolidated revenue for the six months ended June 30, 2014 and 2013, respectively. Revenues by geographic area are as follows (in thousands):
			Three Months Ended June 30,						Six Months Ended June 30,
	Country		2014			2013			2014		2013
	United States		$	164		$	329		330		1,084
	South Korea		49,262			38,458			72,218		47,802
	Japan		10,903			10,485			24,961		15,097
	Other		3,798			87			4,456		352
	All foreign locations		63,963			49,030			101,635		63,251
	Total revenue		$	64,127		$	49,359		$	101,965	$	64,335
	The Company attributes revenue to different geographic areas on the basis of the location of the customer.
	Long-lived assets (net), by geographic area are as follows (in thousands):
			June 30, 2014			December 31, 2013
	United States		$	16,778		$	14,660
	Other		195			233
	Total long-lived assets		$	16,973		$	14,893
	Substantially all chemical materials were purchased from one supplier. See Note 7.

INCOME_TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	14	INCOME TAXES:
	In July 2012, Samsung Mobile Display Co., Ltd (SMD) merged with Samsung Display Co., Ltd. (SDC). Following the merger, all agreements between the Company and SMD were assigned to SDC, and SDC will honor all pre-existing agreements made between the Company and SMD. SDC has been required to withhold tax upon payment of royalty and license fees to the Company at a rate of 16.5%.
	The Company is subject to income taxes in both United States and foreign jurisdictions. The effective income tax rate was 29.6% and 31.8%, respectively, for the three and six months ended June 30, 2014. For the three and six months ended June 30, 2014, income tax expense of $8.6 million and $11.4 million, respectively, was recorded based on the Company's estimated annual effective tax rate for 2014 applied to the Company's income before income taxes. The effective income tax rate was 29.8% and 28.9%, respectively, for the three and six months ended June 30, 2013. For the three and six months ended June 30, 2013, an income tax expense of $6.5 million and $4.3 million, respectively, was recorded primarily related to foreign taxes withheld on royalty and license fees paid to the Company.
	In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent on the Company's ability to generate future taxable income to obtain benefit from the reversal of temporary differences, net operating loss carryforwards and tax credits. As part of its assessment management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies. During the year ended December 31, 2013, based on previous earnings history, an evaluation of expected future taxable income and other evidence, the Company determined it is more likely than not that its federal and the majority of its state deferred tax assets will be realized. At this time there is no additional evidence to release the remaining valuation allowances that relates to UDC Ireland and the remaining portion of foreign tax credits. However, a portion of the New Jersey research and development credits were released to offset the Company's projected current New Jersey income tax liability for 2014.

NET_INCOME_PER_COMMON_SHARE

NET INCOME PER COMMON SHARE	6 Months Ended
	Jun. 30, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]	'
Earnings Per Share [Text Block]	'
	15	NET INCOME PER COMMON SHARE:
	Basic net income per common share is computed by dividing net income by the weighted-average number of shares of common stock outstanding for the period excluding unvested restricted stock awards, restricted stock units and performance units. Diluted net income per common share reflects the potential dilution from the exercise or conversion of securities into common stock, the effect of unvested restricted stock awards, restricted stock units and performance units, and the impact of shares to be issued under the ESPP.
	The following table is a reconciliation of net income and the shares used in calculating basic and diluted net income per common share for the three and six months ended June 30, 2014 and 2013 (in thousands, except share and per share data):
			Three Months Ended June 30,				Six Months ended June 30,
			2014		2013		2014		2013
	Numerator:
	Net income		$	20,422	$	15,382	$	24,443	$	10,624
	Denominator:
	Weighted average common shares outstanding – Basic		46,266,142		45,859,286		46,222,146		45,841,446
	Effect of dilutive shares:
	Common stock equivalents arising from stock options and ESPP		249,618		498,802		262,434		503,908
	Restricted stock awards and units and performance units		98,966		138,032		148,402		178,186
	Weighted average common shares outstanding – Diluted		46,614,726		46,496,120		46,632,982		46,523,540
	Net income per common share:
	Basic		$	0.44	$	0.34	$	0.53	$	0.23
	Diluted		$	0.44	$	0.33	$	0.52	$	0.23
	For the three months ended June 30, 2014 and 2013, the combined effects of unvested restricted stock awards, restricted stock units and performance unit awards of 232,245 and 242,891, respectively, were excluded from the calculation of diluted EPS as their impact would have been antidilutive as the units would not be issued if the end of the reporting period was the end of the performance period. For the six months ended June 30, 2014 and 2013, the combined effects of unvested restricted stock awards, restricted stock units and performance units of 286,225 and 227,088, respectively, and the impact of shares to be issued under the ESPP, which was minor, were excluded from the calculation of diluted EPS as their impact would have been antidilutive.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Basis of Accounting [Text Block]	'
	Interim Financial Information
	In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting of only normal recurring adjustments) necessary to present fairly the Company’s financial position as of June 30, 2014 and results of operations for the three and six months ended June 30, 2014 and 2013, and cash flows for the six months ended June 30, 2014 and 2013. While management believes that the disclosures presented are adequate to make the information not misleading, these unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the notes thereto in the Company’s latest year-end financial statements, which are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013. The results of the Company’s operations for any interim period are not necessarily indicative of the results of operations for any other interim period or for the full year.
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of Universal Display Corporation and its wholly owned subsidiaries, UDC, Inc., UDC Ireland Limited, Universal Display Corporation Hong Kong, Ltd., Universal Display Corporation Korea, Y.H., and Universal Display Corporation Japan, G.K. All intercompany transactions and accounts have been eliminated.
Management's Use of Estimates	'
	Management’s Use of Estimates
	The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The estimates made are principally in the areas of revenue recognition for license agreements, the useful life of acquired technology, the valuation of the Company's convertible promissory note investments, income taxes including realization of deferred tax assets, stock-based compensation and retirement benefit plan liabilities. Actual results could differ from those estimates.
Fair Value Measurements	'
	Fair Value of Financial Instruments
	The carrying values of accounts receivable, other current assets, and accounts payable approximate fair value in the accompanying financial statements due to the short-term nature of those instruments. The Company’s other financial instruments, which include cash equivalents and investments are carried at fair value as noted above.
Revenue Recognition and Deferred Revenue	'
	Revenue Recognition and Deferred Revenue
	Material sales relate to the Company’s sale of its OLED materials for incorporation into its customers’ commercial OLED products or for their OLED development and evaluation activities. Material sales are recognized at the time of shipment or at time of delivery, and passage of title, depending upon the contractual agreement between the parties.
	The Company receives license and royalty payments under certain commercial, development and technology evaluation agreements, some of which are non-refundable advances. These payments may include royalty and license fees made pursuant to license agreements and also license fees included as part of certain commercial supply agreements. Amounts deferred are classified as current and non-current based upon current contractual remaining terms. As of June 30, 2014, $6.3 million was recorded as deferred revenue, none of which is creditable against future commercial license agreements that have not yet been executed or deemed effective. For arrangements with extended payment terms where the fee is not fixed and determinable, the Company recognizes revenue when the payment is due and payable. Royalty revenue and license fees included as part of commercial supply agreements are recognized when earned and the amount is fixed and determinable.
	Technology development and support revenue is revenue earned from government contracts, development and technology evaluation agreements and commercialization assistance fees, which includes reimbursements by government entities for all or a portion of the research and development costs the Company incurs in relation to its government contracts. Revenues are recognized proportionally as research and development costs are incurred, or as defined milestones are achieved.
	Currently, the Company's most significant commercial license agreement, which runs through the end of 2017, is with Samsung Display Co., Ltd. (SDC) and covers the manufacture and sale of specified OLED display products. Under this agreement, the Company is being paid a license fee, payable in semi-annual installments over the agreement term of 6.4 years. The installments, which are due in the second and fourth quarter of each year, increase on an annual basis over the term of the agreement. The agreement conveys to SDC the non-exclusive right to use certain of the Company's intellectual property assets for a limited period of time that is less than the estimated life of the assets. Ratable recognition of revenue is impacted by the agreement's extended increasing payment terms in light of the Company's limited history with similar agreements. As a result, revenue is recognized at the lesser of the proportional performance approach (ratable) and the amount of due and payable fees from SDC. Given the increasing contractual payment schedule, license fees under the agreement are recognized as revenue when they become due and payable, which is currently scheduled to be in the second and fourth quarter of each year.
	The Company records taxes billed to customers and remitted to various governmental entities on a gross basis in both revenues and cost of material sales in the consolidated statements of income. The amounts of these pass through taxes reflected in revenues and cost of material sales were $3.0 million and $3.2 million for the three and six months ended June 30, 2014, respectively, and $30,000 and $125,000 for the three and six months ended June 30, 2013, respectively.
Cost of Material Sales	'
	Cost of Material Sales
	Cost of material sales represents costs associated with the sale of materials that have been classified as commercial, including shipping costs. Commercial materials are materials that have been validated by the Company for use in commercial OLED products. Prior to their designation as commercial materials, costs incurred related to the materials are included in research and development costs.
New Accounting Pronouncements, Policy [Policy Text Block]	'
	Recent Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (FASB) issued a new revenue recognition standard entitled “Revenue from Contracts with Customers.”  The objective of the standard is to establish the principles that an entity shall apply to report useful information to users of financial statements about the nature, amount, timing, and uncertainty of revenue and cash flows from a contract with a customer.  The standard is effective for annual reporting periods beginning after December 15, 2016, which for the Company will commence with the year beginning January 1, 2017.  Earlier application is not permitted.  The standard allows for either “full retrospective” adoption, meaning the standard is applied to all periods presented, or “modified retrospective” adoption, meaning the standard is applied only to the most current period presented in the financial statements.  The Company is currently assessing which method it will choose for adoption, and is evaluating the impact of the adoption of this new accounting standard on its consolidated results of operations and financial position.
	In July 2013, the FASB issued Accounting Standards Update (ASU) No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU No. 2013-11 requires presentation of an unrecognized tax benefit in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit would be presented in the financial statements as a liability and would not be combined with deferred tax assets. This guidance is effective for annual reporting periods beginning after December 15, 2013 and interim periods within those years. The Company adopted this guidance in the first quarter of 2014, and such adoption did not have a material impact on the Company’s consolidated financial position or results of operations

CASH_CASH_EQUIVALENTS_AND_INVE1

CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables)	6 Months Ended
	Jun. 30, 2014
Cash and Cash Equivalents [Abstract]	'
Cash, cash equivalents and investments	'
	Investments as of June 30, 2014 and December 31, 2013 consisted of the following (in thousands):
		Amortized		Unrealized					Aggregate Fair
	Investment Classification	Cost		Gains		(Losses)			Market Value
	June 30, 2014
	Certificates of deposit	$	10,985	$	7	$	(11	)	$	10,981
	Corporate bonds	203,841		40		(6		)	203,875
	U.S. Government bonds	2,998		—		(1		)	2,997
	Convertible notes	—		—		—			—
		$	217,824	$	47	$	(18	)	$	217,853
	December 31, 2013
	Certificates of deposit	$	11,358	$	2	$	(16	)	$	11,344
	Corporate bonds	190,738		33		(48		)	190,723
	U.S. Government bonds	3,074		—		—			3,074
	Convertible notes	4,300		—		—			4,300
		$	209,470	$	35	$	(64	)	$	209,441

FAIR_VALUE_MEASUREMENTS_Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	'
	The following table provides the assets and liabilities carried at fair value measured on a recurring basis as of June 30, 2014 (in thousands):
					Fair Value Measurements, Using
		Total carrying value as of June 30, 2014			Quoted prices in active markets (Level 1)			Significant other observable inputs		Significant unobservable inputs
								(Level 2)		(Level 3)
	Cash equivalents	$	27,932		$	27,932		$	—	$	—
	Short-term investments	215,331			215,331			—		—
	Long-term investments	2,522			2,522			—		—
	The following table provides the assets and liabilities carried at fair value measured on a recurring basis as of December 31, 2013 (in thousands):
					Fair Value Measurements, Using
		Total carrying value as of December 31, 2013			Quoted prices in active markets  (Level 1)			Significant other observable inputs		Significant unobservable inputs
								(Level 2)		(Level 3)
	Cash equivalents	$	7,600		$	7,600		$	—	$	—
	Short-term investments	202,024			202,024			—		—
	Long-term investments	7,417			3,117			—		4,300
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	'
	The following table is a reconciliation of the changes in fair value of the Company’s investments in convertible notes for the three and six months ended June 30, 2014, which had been classified in Level 3 in the fair value hierarchy (in thousands):
		Three Months Ended June 30, 2014			Six Months Ended June 30, 2014
	Fair value of notes, beginning of period	$	300		$	4,300
	Repayment of notes	(300		)	(4,300		)
	Fair value of notes, end of period	$	—		$	—

ACQUIRED_TECHNOLOGY_Tables

ACQUIRED TECHNOLOGY (Tables)	6 Months Ended
	Jun. 30, 2014
Finite-Lived Intangible Assets, Net [Abstract]	'
Acquired technology	'
	These intangible assets consist of the following (in thousands):
		30-Jun-14
	PD-LD, Inc.	$	1,481
	Motorola	15,909
	Fujifilm	109,462
		126,852
	Less: Accumulated amortization	(38,339		)
	Acquired technology, net	$	88,513

ACCUMULATED_OTHER_COMPREHENSIV1

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of accumulated other comprehensive loss	'
	Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
		Unrealized gain (loss) on marketable securities			Net unrealized loss on retirement plan (2)			Total			Affected line items in the consolidated statements of income
	Balance December 31, 2013, net of tax	$	(24	)	$	(4,344	)	$	(4,368	)
	Other comprehensive income before reclassification	37			—			37
	Reclassification to net income (1)	—			184			184			Selling, general and administrative and research and development
	Change during period	37			184			221
	Balance June 30, 2014, net of tax	$	13		$	(4,160	)	$	(4,147	)
		Unrealized gain (loss) on marketable securities			Net unrealized loss on retirement plan (2)			Total			Affected line items in the consolidated statements of income
	Balance December 31, 2012, net of tax	$	(18	)	$	(5,684	)	$	(5,702	)
	Other comprehensive loss before reclassification	36			—			36
	Reclassification to net loss (1)	—			339			339			Selling, general and administrative and research and development
	Change during period	36			339			375
	Balance June 30, 2013, net of tax	$	18		$	(5,345	)	$	(5,327	)
	_______________________________________________
	(1) The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $184,000 and $339,000 for the six months ended June 30, 2014 and 2013, respectively.
	(2) Refer to Note 11: Supplemental Executive Retirement Plan.

SUPPLEMENTAL_EXECUTIVE_RETIREM1

SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Tables)	6 Months Ended
	Jun. 30, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]	'
Components of net periodic pension cost	'
	The components of net periodic pension cost were as follows (in thousands):
		Three Months Ended June 30,				Six Months Ended June 30,
		2014		2013		2014		2013
	Service cost	$	167	$	161	$	334	$	323
	Interest cost	106		86		212		172
	Amortization of prior service cost	146		146		292		292
	Amortization of loss	—		24		—		47
	Total net periodic benefit cost	$	419	$	417	$	838	$	834

CONCENTRATION_OF_RISK_Tables

CONCENTRATION OF RISK (Tables)	6 Months Ended
	Jun. 30, 2014
Risks and Uncertainties [Abstract]	'
Revenues and accounts receivable from our largest non-government customers	'
	Revenues and accounts receivable from the Company's largest non-government customers were as follows (in thousands):
		% of Revenues for the three months ended June 30,			% of Revenues for the six months ended June 30,			Accounts Receivable as of
	Customer	2014		2013	2014		2013	30-Jun-14
	A	62%		73%	52%		65%	$	9,501
	B	16%		19%	22%		20%	$	1,556
	C	14%		5%	18%		8%	$	8,384
Revenues by geographic area	'
	Revenues by geographic area are as follows (in thousands):
		Three Months Ended June 30,						Six Months Ended June 30,
	Country	2014			2013			2014		2013
	United States	$	164		$	329		330		1,084
	South Korea	49,262			38,458			72,218		47,802
	Japan	10,903			10,485			24,961		15,097
	Other	3,798			87			4,456		352
	All foreign locations	63,963			49,030			101,635		63,251
	Total revenue	$	64,127		$	49,359		$	101,965	$	64,335
Long-lived assets (net) by geographic area	'
	Long-lived assets (net), by geographic area are as follows (in thousands):
		June 30, 2014			December 31, 2013
	United States	$	16,778		$	14,660
	Other	195			233
	Total long-lived assets	$	16,973		$	14,893

NET_INCOME_PER_COMMON_SHARE_Ta

NET INCOME PER COMMON SHARE (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
	The following table is a reconciliation of net income and the shares used in calculating basic and diluted net income per common share for the three and six months ended June 30, 2014 and 2013 (in thousands, except share and per share data):
		Three Months Ended June 30,				Six Months ended June 30,
		2014		2013		2014		2013
	Numerator:
	Net income	$	20,422	$	15,382	$	24,443	$	10,624
	Denominator:
	Weighted average common shares outstanding – Basic	46,266,142		45,859,286		46,222,146		45,841,446
	Effect of dilutive shares:
	Common stock equivalents arising from stock options and ESPP	249,618		498,802		262,434		503,908
	Restricted stock awards and units and performance units	98,966		138,032		148,402		178,186
	Weighted average common shares outstanding – Diluted	46,614,726		46,496,120		46,632,982		46,523,540
	Net income per common share:
	Basic	$	0.44	$	0.34	$	0.53	$	0.23
	Diluted	$	0.44	$	0.33	$	0.52	$	0.23

BUSINESS_Details

BUSINESS (Details)	Jun. 30, 2014
	patent
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Number of Patents Issued And Pending Application	3,000

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Accounting Policies [Abstract]	'	'	'	'	'
Deferred revenue under license agreements not yet executed or deemed effective	$6,300,000	'	$6,300,000	'	$0
License Fee Agreement, Term of Agreement	'	'	'6 years 4 months 24 days	'	'
Taxes, Other	$3,000,000	$30,000	$3,200,000	$125,000	'

CASH_CASH_EQUIVALENTS_AND_INVE2

CASH, CASH EQUIVALENTS AND INVESTMENTS (Details) (USD $)

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jul. 17, 2012

Jul. 13, 2012

In Thousands, unless otherwise specified

Certificates of Deposit [Member]

Certificates of Deposit [Member]

Corporate Debt Securities [Member]

Corporate Debt Securities [Member]

US Treasury and Government [Member]

US Treasury and Government [Member]

Convertible notes [Member]

Convertible notes [Member]

Private Company [Member]

Plextronics, Inc. [Member]

Convertible notes [Member]

Convertible notes [Member]

Cash and Cash Equivalents [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash Equivalents, at Carrying Value

'

'

'

$10,985

$11,358

'

'

'

'

'

'

'

'

Cash equivalents, Unrealized Gains

'

'

'

7

2

'

'

'

'

'

'

'

'

Cash Equivalents, Gross Unrealized Losses

'

'

'

-11

-16

'

'

'

'

'

'

'

'

Cash and Cash Equivalents, Fair Value Disclosure

'

'

'

10,981

11,344

'

'

'

'

'

'

'

'

Available-for-sale Debt Securities, Amortized Cost Basis

'

4,000

'

'

'

203,841

190,738

2,998

3,074

0

4,300

300

'

Available-for-sale securities, Unrealized Gains

'

'

'

'

'

40

33

0

0

0

0

'

'

Available-for-sale Securities

'

'

'

'

'

-6

-48

-1

0

0

0

'

'

Available-for-sale Securities, Fair Value Disclosure

'

'

'

'

'

203,875

190,723

2,997

3,074

0

4,300

'

'

Investments, Amortized Cost Basis

217,824

'

209,470

'

'

'

'

'

'

'

'

'

'

Investments, Gross Unrealized Gains

47

'

35

'

'

'

'

'

'

'

'

'

'

Investments, Gross Unrealized Losses

-18

'

-64

'

'

'

'

'

'

'

'

'

'

Investments

$217,853

'

$209,441

'

'

'

'

'

'

'

'

'

'

Convertible promissory note stated interest rate

'

'

'

'

'

'

'

'

'

'

'

5.00%

3.00%

FAIR_VALUE_MEASUREMENTS_Detail

FAIR VALUE MEASUREMENTS (Details) (USD $)

3 Months Ended

6 Months Ended

In Thousands, unless otherwise specified

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Fair Value, Measurements, Recurring [Member]

Fair Value, Measurements, Recurring [Member]

Fair Value, Measurements, Recurring [Member]

Fair Value, Measurements, Recurring [Member]

Fair Value, Measurements, Recurring [Member]

Fair Value, Measurements, Recurring [Member]

Reported Value Measurement [Member]

Reported Value Measurement [Member]

Convertible notes [Member]

Convertible notes [Member]

Convertible notes [Member]

Fair Value, Inputs, Level 1 [Member]

Fair Value, Inputs, Level 1 [Member]

Fair Value, Inputs, Level 2 [Member]

Fair Value, Inputs, Level 2 [Member]

Fair Value, Inputs, Level 3 [Member]

Fair Value, Inputs, Level 3 [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash and Cash Equivalents, Fair Value Disclosure

'

'

$27,932

$7,600

$0

$0

$0

$0

$27,932

$7,600

'

'

'

Short Term Investments Fair Value Disclosure

'

'

215,331

202,024

0

0

0

0

215,331

202,024

'

'

'

Long Term Investments Fair Value Disclosure

'

'

2,522

3,117

0

0

0

4,300

2,522

7,417

'

'

'

Rollforward of changes in fair value of investments in convertible notes

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of notes, beginning of period

'

'

'

'

'

'

'

'

'

'

0

300

4,300

Repayment of notes

-300

-4,300

'

'

'

'

'

'

'

'

'

'

'

Fair value of notes, end of period

'

'

'

'

'

'

'

'

'

'

$0

$300

$4,300

RESEARCH_AND_LICENSE_AGREEMENT1

RESEARCH AND LICENSE AGREEMENTS WITH PRINCETON UNIVERSITY, UNIVERSITY OF SOUTHERN CALIFORNIA AND THE UNIVERSITY OF MICHIGAN (Details) (USD $)

3 Months Ended

6 Months Ended

120 Months Ended

36 Months Ended

48 Months Ended

13 Months Ended

32 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jul. 31, 2007

Apr. 30, 2009

Apr. 30, 2013

Jun. 30, 2014

Dec. 31, 2011

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

1997 Research Agreement [Member]

2006 Research Agreement - Original Term [Member]

2006 Research Agreement - Original Term [Member]

2006 Research Agreement - Extended Term [Member]

2006 Research Agreement - Extended Term [Member]

1997 Amended License Agreement [Member]

1997 Amended License Agreement [Member]

1997 Amended License Agreement [Member]

1997 Amended License Agreement [Member]

Research and Development Arrangement, Contract to Perform for Others [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Term of agreement (in years)

'

'

'

'

'10 years

'3 years

'4 years

'

'4 years

'

'

'

'

Research and development expense incurred

'

'

'

'

'

$5,000,000

'

$1,300,000

'

'

'

'

'

Maximum obligation

'

'

'

'

'

'

'

7,300,000

'

'

'

'

'

Royalty rate for licensed products sold by the Company (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

3.00%

'

Royalty rate for licensed products sold by the Company's sublicenses (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

3.00%

'

Minimum royalty payment per year

'

'

'

'

'

'

'

'

'

'

'

100,000

'

Royalty expense

1,501,000

1,172,000

2,257,000

1,484,000

'

'

'

'

'

1,499,000

1,200,000

2,228,000

1,500,000

Minimum investment per year

'

'

'

'

'

'

'

'

'

'

'

$800,000

'

ACQUIRED_TECHNOLOGY_Details

ACQUIRED TECHNOLOGY (Details) (USD $)

3 Months Ended

6 Months Ended

12 Months Ended

0 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Jul. 23, 2012

Jul. 23, 2012

PD LD, Inc [Member]

Motorola [Member]

Motorola [Member]

Motorola [Member]

FUJIFILM [Member]

FUJIFILM [Member]

FUJIFILM [Member]

Licensing Agreements [Member]

Licensing Agreements [Member]

Patents [Member]

Patents [Member]

patent

Minimum [Member]

patent

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Acquired technology, gross

$126,852,000

'

$126,852,000

'

'

$1,481,000

$15,909,000

'

'

$109,462,000

'

'

Less: Accumulated amortization

-38,339,000

'

-38,339,000

'

-32,841,000

'

'

'

'

'

'

'

Acquired technology, net

88,513,000

'

88,513,000

'

94,011,000

'

'

'

'

'

'

'

Number of patents under license agreement

'

'

'

'

'

'

'

'

74

'

'

'

Assigned value of acquired intangible assets

'

'

'

'

'

'

'

'

'

'

105,000,000

'

Amortization period of acquired intangible assets (in years)

'

'

'

'

'

'

'

'7 years 6 months

'

'

'

'

FUJIFILM Patent Acquisition [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Number of patents acquired

'

'

'

'

'

'

'

'

'

'

'

1,200

Assigned value of acquired intangible assets

'

'

'

'

'

'

'

'

'

'

105,000,000

'

Cash paid for OLED patents

'

'

'

'

'

'

'

'

'

'

4,500,000

'

OLED patents useful life

'

'

'

'

'

'

'

'

'

'

'10 years

'

Amortization of intangibles

2,748,000

2,700,000

5,498,000

5,483,000

'

'

'

'

'

'

'

'

Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Acquired technology, net

$88,513,000

'

$88,513,000

'

$94,011,000

'

'

'

'

'

'

'

EQUITY_AND_CASH_COMPENSATION_U1

EQUITY AND CASH COMPENSATION UNDER THE PPG AGREEMENTS (Details) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended		3 Months Ended		6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Oct. 01, 2000	Oct. 01, 2000	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
					Research and Development Arrangement [Member]	Inventories [Member]	New OLED Materials Agreement and OLED Materials Agreement [Member]	New OLED Materials Agreement and OLED Materials Agreement [Member]	New OLED Materials Agreement and OLED Materials Agreement [Member]	New OLED Materials Agreement and OLED Materials Agreement [Member]
Long-term Purchase Commitment [Line Items]	'	'	'	'	'	'	'	'	'	'
Long-term Purchase Commitment, Agreement Period	'	'	'	'	'5 years	'7 years	'	'	'	'
Percent Of Services Payable In Cash Or Shares	50.00%	'	50.00%	'	'	'	'	'	'	'
Minimum average closing price of common stock (in dollars per share)	'	'	'	'	'	'	$20	'	$20	'
Issuance of common stock in connection with materials and license agreements (in shares)	0	0	0	0	'	'	'	'	'	'
Charges to expense for cash portion of reimbursement of expenses	'	'	'	'	'	'	$3.70	$1	$7.20	$3.30

SHAREHOLDERS_EQUITY_Details

SHAREHOLDERS' EQUITY (Details) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 02, 2014	Jun. 30, 2014	Dec. 31, 2013
Equity [Abstract]	'	'	'
Stock repurchase program, authorized amount	$50	'	'
Stock repurchase program, authorized period	'12 months	'	'
Shares repurchased during the period	'	234,800	'
Treasury Stock, Value, Acquired, Cost Method	'	'	$7

SHAREHOLDERS_EQUITY_Deferred_C

SHAREHOLDERS' EQUITY - Deferred Compensation Arrangement (Details) (USD $)	6 Months Ended		3 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
			Employees and Non Employee Members of Scientific Advisory Board [Member]	Employees and Non Employee Members of Scientific Advisory Board [Member]	Employees [Member]	Employees [Member]	Non Employee Members of Scientific Advisory Board [Member]	Non Employee Members of Scientific Advisory Board [Member]
Deferred Compensation Arrangement with Employees and Non-Employees, Share-Based Payments [Line Items]	'	'	'	'	'	'	'	'
Shares issued (in shares)	'	'	31,301	22,568	'	'	'	'
Fair value of shares issued	'	'	'	'	$746,000	$435,000	$323,000	$300,000
Shares withheld for tax withholding obligations (in shares)	'	'	'	'	8,071	4,672	'	'
Fair value of shares withheld for tax withholding obligations	$2,600,000	$3,000,000	'	'	$271,000	$154,000	'	'

ACCUMULATED_OTHER_COMPREHENSIV2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'		'		'		'
Balance, beginning of period	'		'		($4,368)		($5,702)
Other comprehensive income before reclassification	'		'		37		36
Reclassification to net income	'		'		184	[1]	339	[1]
Other comprehensive income (loss)	-167		-209		-221		-375
Balance, end of period	-4,147		-5,327		-4,147		-5,327
Unrealized gain (loss) on marketable securities [Member]	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'		'		'		'
Balance, beginning of period	'		'		-24		-18
Other comprehensive income before reclassification	'		'		37		36
Reclassification to net income	'		'		0	[1]	0	[1]
Change during period, unrealized gain (loss) on marketable securities	'		'		37		36
Balance, end of period	13		18		13		18
Net unrealized loss on retirement plan [Member]	'		'		'		'
Accumulated Other Comprehensive Income (Loss) [Roll Forward]	'		'		'		'
Balance, beginning of period	'		'		-4,344	[2]	-5,684	[2]
Other comprehensive income before reclassification	'		'		0	[2]	0	[2]
Reclassification to net income	'		'		184	[1],[2]	339	[1],[2]
Change during period, net unrealized loss on retirement plan	'		'		184	[2]	339	[2]
Balance, end of period	($4,160)	[2]	($5,345)	[2]	($4,160)	[2]	($5,345)	[2]
[1]	The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income of $184,000 and $339,000 for the six months ended June 30, 2014 and 2013, respectively.
[2]	Refer to Note 11: Supplemental Executive Retirement Plan.

STOCKBASED_COMPENSATION_Stock_

STOCK-BASED COMPENSATION, Stock Options (Details)	6 Months Ended
	Jun. 30, 2014
Stock Options [Member] | Maximum [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Expiration term (in years)	'10 years
Equity Compensation Plan [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares authorized (in shares)	10,500,000
Number of shares available for grant (in shares)	3,589,154

STOCKBASED_COMPENSATION_Stock_1

STOCK-BASED COMPENSATION, Stock Options Outstanding And Exercisable (Details) (USD $)	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Stock-based compensation, aggregate disclosures [Abstract]	'	'
Fair value of shares withheld for tax withholding obligations	$2,600	$3,000
Director [Member]	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'
Deferred Compensation Arrangement with Individual, Shares Issued	11,250	10,000

STOCKBASED_COMPENSATION_Equity

STOCK-BASED COMPENSATION, Equity Instruments Other Than Options (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Restricted stock awards and units vesting terms	'	'	'2 years	'
Fair value of shares withheld for tax withholding obligations	'	'	$2,600,000	$3,000,000
Restricted Stock and Units [Member]	'	'	'	'
Equity instruments other than options [Roll Forward]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	'	'	59,027	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Restricted stock awards and units vesting terms	'	'	'3 years	'
Shares withheld for tax withholding obligations (in shares)	'	'	75,314	94,087
Total fair value of performance unit awards granted	'	'	2,000,000	'
Restricted Stock and Units [Member] | Minimum [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Restricted stock awards and units vesting terms	'	'	'1 year	'
Restricted Stock and Units [Member] | Maximum [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Restricted stock awards and units vesting terms	'	'	'6 years	'
Restricted Stock and Units [Member] | Selling, General and Adminstrative Expense [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Compensation expense	914,000	1,100,000	1,800,000	1,900,000
Restricted Stock and Units [Member] | Research and Development Expense [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Compensation expense	409,000	417,000	783,000	744,000
Performance Shares [Member]	'	'	'	'
Equity instruments other than options [Roll Forward]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	'	'	36,092	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Total fair value of performance unit awards granted	'	'	1,400,000	'
Performance Shares [Member] | Selling, General and Adminstrative Expense [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Compensation expense	198,000	137,000	685,000	175,000
Performance Shares [Member] | Research and Development Expense [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Compensation expense	60,000	42,000	207,000	53,000
Non Employee Members of Scientific Advisory Board [Member] | Restricted Stock and Units [Member] | Research and Development Expense [Member]	'	'	'	'
Stock-based compensation, aggregate disclosures [Abstract]	'	'	'	'
Compensation expense	$57,000	$44,000	$100,000	$130,000
Performance-Based Vesting Requirement [Member] | Performance Shares [Member]	'	'	'	'
Equity instruments other than options [Roll Forward]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	'	'	18,044	'
Market-Based Vesting Requirement [Member] | Performance Shares [Member]	'	'	'	'
Equity instruments other than options [Roll Forward]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	'	'	18,048	'

STOCKBASED_COMPENSATION_Employ

STOCK-BASED COMPENSATION, Employee Stock Purchase Plan (Details) (USD $)

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 25, 2009

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Employee Stock Purchase Plan (ESPP) [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Reserved for issuance (in shares)

'

'

'

1,000,000

'

'

'

'

'

'

'

'

Purchase period (in months)

'

'3 months

'

'

'

'

'

'

'

'

'

'

Percentage of market value (in hundredths)

'

85.00%

'

'

'

'

'

'

'

'

'

'

Maximum allocation of base compensation (in hundredths)

'

10.00%

'

'

'

'

'

'

'

'

'

'

Maximum shares per purchase date (in shares)

'

12,500

'

'

'

'

'

'

'

'

'

'

Maximum value per calendar year, per employee

'

$25,000

'

'

'

'

'

'

'

'

'

'

Common stock issued (in shares)

'

5,951

7,775

'

'

'

'

'

'

'

'

'

Proceeds from common stock issued

162,000

162,000

177,000

'

'

'

'

'

'

'

'

'

Charges to expense

'

'

'

'

$9,000

$8,000

$23,000

$15,000

$11,000

$19,000

$25,000

$42,000

STOCKBASED_COMPENSATION_Deferr

STOCK-BASED COMPENSATION Deferred Compensation Arrangement (Details) (USD $)

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Non Employee Members of Scientific Advisory Board [Member]

Non Employee Members of Scientific Advisory Board [Member]

Director [Member]

Director [Member]

Director [Member]

Director [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Restricted Stock and Units [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Performance Shares [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Non Employee Members of Scientific Advisory Board [Member]

Non Employee Members of Scientific Advisory Board [Member]

Non Employee Members of Scientific Advisory Board [Member]

Non Employee Members of Scientific Advisory Board [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Selling, General and Adminstrative Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Research and Development Expense [Member]

Deferred Compensation Arrangement with Employees and Non Employees, Share Based Payments [Line Items]

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Restricted stock awards and units vesting terms

'2 years

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'3 years

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Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period

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59,027

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36,092

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Compensation expense

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$914,000

$1,100,000

$1,800,000

$1,900,000

$409,000

$417,000

$783,000

$744,000

$57,000

$44,000

$100,000

$130,000

'

$198,000

$137,000

$685,000

$175,000

$60,000

$42,000

$207,000

$53,000

Fair value of shares withheld for tax withholding obligations

2,600,000

3,000,000

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Shares withheld for tax withholding obligations (in shares)

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75,314

94,087

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Vesting period

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'1 year

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Fair value of shares issued

'

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$323,000

$300,000

$202,000

$126,000

$363,000

$264,000

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Deferred Compensation Arrangement with Individual, Shares Issued

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11,250

10,000

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SUPPLEMENTAL_EXECUTIVE_RETIREM2

SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Details) (Supplemental Executive Retirement Plan [Member], USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
	participant		participant
Supplemental Executive Retirement Plan [Member]	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'
Number of participants	6	'	6	'
Components of net periodic pension cost [Abstract]	'	'	'	'
Service cost	$167	$161	$334	$323
Interest cost	106	86	212	172
Amortization of prior service cost	146	146	292	292
Amortization of loss	0	24	0	47
Total net periodic benefit cost	$419	$417	$838	$834

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Details)	Jun. 30, 2014
	participant
Loss Contingencies [Line Items]	'
Opponents in Legal Case	3
Commitment With Executive Officers [Member]	'
Loss Contingencies [Line Items]	'
Number of executive officers under agreement	6
Multiple of sum of average annual base salary and bonus agreement terms	2

CONCENTRATION_OF_RISK_Revenues

CONCENTRATION OF RISK, Revenues and Accounts Receivable (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Concentration Risk [Line Items]	'	'	'	'	'
Revenues	$64,127	$49,359	$101,965	$64,335	'
Accounts receivable	20,500	'	20,500	'	15,657
Total Revenue [Member] | Government Contracts Concentration Risk [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Revenues	48	232	117	861	'
Concentration Risk, Percentage	1.00%	1.00%	1.00%	1.00%	'
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer A [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	62.00%	73.00%	52.00%	65.00%	'
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer B [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	16.00%	19.00%	22.00%	20.00%	'
Total Revenue [Member] | Customer Concentration Risk [Member] | Major Customer C [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	14.00%	5.00%	18.00%	8.00%	'
Total Revenue [Member] | Geographic Concentration Risk [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Concentration Risk, Percentage	100.00%	99.00%	100.00%	98.00%	'
Concentration risk, additional characteristic	'	'	'outside of North America	'	'
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer A [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Accounts receivable	9,501	'	9,501	'	'
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer B [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Accounts receivable	1,556	'	1,556	'	'
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Major Customer C [Member]	'	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'	'
Accounts receivable	$8,384	'	$8,384	'	'

CONCENTRATION_OF_RISK_Revenues1

CONCENTRATION OF RISK, Revenues by Geographic Area (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Concentration Risk [Line Items]	'	'	'	'
Revenues	$64,127	$49,359	$101,965	$64,335
UNITED STATES	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Revenues	164	329	330	1,084
South Korea [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Revenues	49,262	38,458	72,218	47,802
Japan [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Revenues	10,903	10,485	24,961	15,097
Other [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Revenues	3,798	87	4,456	352
All Countries [Domain]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Revenues	$63,963	$49,030	$101,635	$63,251
Geographic Concentration Risk [Member] | Total Revenue [Member]	'	'	'	'
Concentration Risk [Line Items]	'	'	'	'
Concentration Risk, Percentage	100.00%	99.00%	100.00%	98.00%

CONCENTRATION_OF_RISK_LongLive

CONCENTRATION OF RISK, Long-Lived Assets by Geographic Area (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified			Supplier Concentration Risk [Member]	UNITED STATES	UNITED STATES	Other [Member]	Other [Member]
			supplier
Segment Reporting Information [Line Items]	'	'	'	'	'	'	'
Total long-lived assets	$16,973	$14,893	'	$16,778	$14,660	$195	$233
Number of suppliers from which chemical materials were purchased	'	'	1	'	'	'	'

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Withholding tax rate for royalty payments	'	'	16.50%	'
Effective income tax rate, percent	29.60%	29.80%	31.80%	28.90%
Income tax expense	$8,588	$6,517	$11,395	$4,323

NET_INCOME_PER_COMMON_SHARE_De

NET INCOME PER COMMON SHARE (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income	$20,422	$15,382	$24,443	$10,624
Weighted average common shares outstanding – Basic	46,266,142	45,859,286	46,222,146	45,841,446
Common stock equivalents arising from stock options and ESPP	249,618	498,802	262,434	503,908
Restricted stock awards and units and performance units	98,966	138,032	148,402	178,186
Weighted average common shares outstanding – Diluted	46,614,726	46,496,120	46,632,982	46,523,540
Basic (in dollars per share)	$0.44	$0.34	$0.53	$0.23
Diluted (in dollars per share)	$0.44	$0.33	$0.52	$0.23
Antidilutive securities excluded from the calculation of earnings per share	232,245	242,891	286,225	227,088