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STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)
 12 Months Ended
Dec. 31, 2014
$1M Purchase Agreement [Member]  
Purchase Agreement Value $ 1,000,000xgti_PurchaseAgreementValue
/ xgti_AgreementAxis
= xgti_PurchaseAgreement1Member
$15M Purchase Agreement [Member]  
Purchase Agreement Value $ 15,000,000xgti_PurchaseAgreementValue
/ xgti_AgreementAxis
= xgti_PurchaseAgreement2Member