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v2.4.1.9

Related Party Transactions (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Oct. 31, 2013
Related Party Transaction [Line Items] |  |  |
Common stock issued to broker in connection with preferred stock exchange | $ 0 us-gaap_StockIssuedDuringPeriodValueIssuedForServices | $ 135,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices |
General and administrative expenses | 5,643,000 us-gaap_GeneralAndAdministrativeExpense | 7,378,000 us-gaap_GeneralAndAdministrativeExpense |
Director Affiliated Entity [Member] | ABM Industries, Inc. (ABM) [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Revenue, related parties | 133,000 us-gaap_RevenueFromRelatedParties / dei_LegalEntityAxis = glow_AbmIndustriesIncMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_DirectorAffiliatedEntityMember | 136,000 us-gaap_RevenueFromRelatedParties / dei_LegalEntityAxis = glow_AbmIndustriesIncMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_DirectorAffiliatedEntityMember |
Accounts receivable, related parties, current | 0 us-gaap_AccountsReceivableRelatedPartiesCurrent / dei_LegalEntityAxis = glow_AbmIndustriesIncMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_DirectorAffiliatedEntityMember |  |
Director [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Related party transaction, amounts of transaction, monthly | 12,500 glow_RelatedPartyTransactionAmountsOfTransactionMonthly / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |  |
Related party transaction, amounts of transaction | 39,000 us-gaap_RelatedPartyTransactionAmountsOfTransaction / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember | 150,000 us-gaap_RelatedPartyTransactionAmountsOfTransaction / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |
Shareholder affiliated entity [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Agreement termination fee |  | 100,000 glow_AgreementTerminationFeeValue / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember |
Stock issued for services, shares |  | 100,000 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember |
Common stock issued to broker in connection with preferred stock exchange |  | 135,000 us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember |
Stock price (in dollars per share) |  |  | $ 1.35 us-gaap_SharePrice / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember
General and administrative expenses | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember | 96,000 us-gaap_GeneralAndAdministrativeExpense / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember |
Accounts payable, related parties | 0 us-gaap_AccountsPayableRelatedPartiesCurrent / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PrincipalAffiliatedEntityMember |  |
Wife of President and CEO (Nancy K. Holst) [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Related party transaction, amounts of transaction | $ 0 us-gaap_RelatedPartyTransactionAmountsOfTransaction / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember | $ 21,000 us-gaap_RelatedPartyTransactionAmountsOfTransaction / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember |
President and CEO [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Note payable, individual ownership percentage | 27.00%glow_DebtInstrumentInterestinNotePayableOwnershipPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_PresidentandCEOMember |  |
GP Investment Holdings, LLC [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Common shares owned by stockholder | 7,711,517 glow_CommonSharesOwnedStockholder / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_GPInvestmentHoldingsLLCMember |  |
Common shares owned by stockholder (percent) | 22.00%glow_CommonSharesOwnedStockholderPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = glow_GPInvestmentHoldingsLLCMember |  |

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