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Supplemental Disclosures of Cash Flows Information (Details 2) (ReliOn, USD $)
0 Months Ended
Apr. 02, 2014
ReliOn
 
Supplemental disclosures of cash flows information  
Stock issued for net assets $ (4,000,000)us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= plug_ReliOnIncMember