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CONSOLIDATED STATEMENTS OF CASH FLOWS Non-Cash Activities (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Other Significant Noncash Transactions [Line Items]
Unrealized gain on available-for-sale securities	$ 22us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLoss	$ 43us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLoss
Common Stock Issued To Board Of Directors And Scientific Advisory Board That Was Earned In Previous Period [Member]
Other Significant Noncash Transactions [Line Items]
Other Significant Noncash Transaction, Value of Consideration Received	300us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = oled_CommonStockIssuedToBoardOfDirectorsAndScientificAdvisoryBoardThatWasEarnedInPreviousPeriodMember	323us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = oled_CommonStockIssuedToBoardOfDirectorsAndScientificAdvisoryBoardThatWasEarnedInPreviousPeriodMember
Common Stock Issued To Employees That Was Accrued For In Previous Period Net Of Shares Withheld For Taxes [Member]
Other Significant Noncash Transactions [Line Items]
Other Significant Noncash Transaction, Value of Consideration Received	967us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = oled_CommonStockIssuedToEmployeesThatWasAccruedForInPreviousPeriodNetOfSharesWithheldForTaxesMember	475us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = oled_CommonStockIssuedToEmployeesThatWasAccruedForInPreviousPeriodNetOfSharesWithheldForTaxesMember
Other Capitalized Property Plant and Equipment [Member]
Other Significant Noncash Transactions [Line Items]
Other Significant Noncash Transaction, Value of Consideration Received	$ (686)us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember	$ (305)us-gaap_OtherSignificantNoncashTransactionValueOfConsiderationReceived1 / us-gaap_OtherSignificantNoncashTransactionsByUniqueDescriptionAxis = us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember

X

- Definition

This item represents the pretax change in net unrealized holding gain (loss) on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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- Definition

The value of the noncash (or part noncash) consideration received in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

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-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586



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