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Organization, Plan of Business Operation (Details Textual) (USD $)
In Thousands, unless otherwise specified
1 Months Ended
Mar. 22, 2012
Organization, Consolidation and Presentation of Financial Statements And Going Concern [Line Items]  
Proceeds from Issuance or Sale of Equity, Total $ 43,163us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Equity Proceeds Held In Trust Account $ 42,740tgls_EquityProceedsHeldInTrustAccount