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Subsequent Events (Details Textual)
 1 Months Ended
Nov. 30, 2014
May 31, 2014
Mar. 31, 2015
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues 1,500,000us-gaap_StockIssuedDuringPeriodSharesNewIssues 2,187,500us-gaap_StockIssuedDuringPeriodSharesNewIssues  
Director [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues 1,500,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember		    
Subsequent Event [Member] | Equity Incentive Plan 2013 [Member] | Director [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues     1,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_AwardTypeAxis
= sglb_EquityIncentivePlan2013Member
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_DirectorMember
Subsequent Event [Member] | Equity Incentive Plan 2013 [Member] | Officer and two consultants [Member]      
Subsequent Event [Line Items]      
Stock Issued During Period, Shares, New Issues     2,603,774us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_AwardTypeAxis
= sglb_EquityIncentivePlan2013Member
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_TitleOfIndividualAxis
= us-gaap_OfficerMember