XML 41 R47.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt (Narrative) (Details) (USD $)
12 Months Ended 0 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Oct. 17, 2013
Feb. 28, 2014
Mar. 01, 2015
Debt Instrument [Line Items]          
Deferred financing costs   $ 363,000us-gaap_DeferredFinanceCostsNet      
Amortization of financing costs 89,000us-gaap_AmortizationOfFinancingCosts 976,000us-gaap_AmortizationOfFinancingCosts      
Amortization of debt discount 0us-gaap_AmortizationOfDebtDiscountPremium 727,000us-gaap_AmortizationOfDebtDiscountPremium      
Gain on restructured promissory note 0glow_ForgivenessofInterestExpense 103,000glow_ForgivenessofInterestExpense      
Current portion of long-term debt 400,000us-gaap_LongTermDebtCurrent 950,000us-gaap_LongTermDebtCurrent      
Interest Expense [Member]          
Debt Instrument [Line Items]          
Amortization of financing costs   710,000us-gaap_AmortizationOfFinancingCosts
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_InterestExpenseMember
     
Amortization of debt discount   619,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_InterestExpenseMember
     
Prepaid Expenses and Other Current Assets [Member]          
Debt Instrument [Line Items]          
Deferred financing costs 84,000us-gaap_DeferredFinanceCostsNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember
       
Other Assets [Member]          
Debt Instrument [Line Items]          
Deferred financing costs 192,000us-gaap_DeferredFinanceCostsNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherAssetsMember
       
Comerica Term Loan [Member] | Principal payment terms, period 1 [Member]          
Debt Instrument [Line Items]          
Excess cash flow (percent)     33.00%glow_DebtInstrumentPrincipalPaymentPercentageOfExcessCashFlow
/ us-gaap_DebtInstrumentAxis
= glow_ComericaTermLoanMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember
   
Comerica Term Loan [Member] | Principal payment terms, period 2 [Member]          
Debt Instrument [Line Items]          
Excess cash flow (percent)     50.00%glow_DebtInstrumentPrincipalPaymentPercentageOfExcessCashFlow
/ us-gaap_DebtInstrumentAxis
= glow_ComericaTermLoanMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember
   
Note with SRS [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Stated interest rate percentage 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
  10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
 
Note payable, face value 1,785,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
1,885,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
     
Debt instrument, periodic payment, principal 50,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Number of principal payments 2glow_DebtInstrumentNumberofInstallmentPayments
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Note payable, total of periodic principal payments 100,000us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Note with SRS [Member] | Promissory Note [Member] | Subsequent Event [Member]          
Debt Instrument [Line Items]          
Stated interest rate percentage         15.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Note with SRS [Member] | Principal payment terms, period 1 [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Debt instrument, periodic payment, principal 50,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period 3 months        
Debt covenant, additional principal payments, adjusted base EBITDA 1,500,000glow_DebtInstrumentAdditionalPeriodicPaymentPrincipalReductionToCalculatedPayment
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Note with SRS [Member] | Principal payment terms, period 2 [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period 6 months        
Debt covenant, additional principal payments, adjusted base EBITDA 3,000,000glow_DebtInstrumentAdditionalPeriodicPaymentPrincipalReductionToCalculatedPayment
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Debt covenant, additional principal payments, adjusted base EBITDA (percent) 40.00%glow_DebtInstrumentAdditionalPeriodicPaymentPrincipalPercentOfEarningsBenchmark
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_DebtInstrumentRedemptionPeriodAxis
= us-gaap_DebtInstrumentRedemptionPeriodTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
       
Amended note with Stockholder Representative [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Note payable, face value   1,885,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= glow_AmendedNotewithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
     
Decrease in face amount of debt instrument       (203,000)glow_DebtInstrumentIncreaseDecreaseinFaceAmount
/ us-gaap_DebtInstrumentAxis
= glow_AmendedNotewithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
 
Amended note with Stockholder Representative [Member] | General and Administrative Expenses [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Decrease in face amount of debt instrument       (40,000)glow_DebtInstrumentIncreaseDecreaseinFaceAmount
/ us-gaap_DebtInstrumentAxis
= glow_AmendedNotewithStockholderRepresentativeMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
 
Amended note with Stockholder Representative [Member] | Other Income [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Gain on restructured promissory note       103,000glow_ForgivenessofInterestExpense
/ us-gaap_DebtInstrumentAxis
= glow_AmendedNotewithStockholderRepresentativeMember
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_OtherIncomeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
 
Amended note with Stockholder Representative [Member] | Accrued Expenses [Member] | Promissory Note [Member]          
Debt Instrument [Line Items]          
Decrease in face amount of debt instrument       60,000glow_DebtInstrumentIncreaseDecreaseinFaceAmount
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_AccruedLiabilitiesMember
/ us-gaap_DebtInstrumentAxis
= glow_AmendedNotewithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
 
Term Loan [Member]          
Debt Instrument [Line Items]          
Stated interest rate percentage     12.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
   
Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Stated interest rate percentage     8.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
   
Main Street Capital Corporation [Member] | Term Loan [Member]          
Debt Instrument [Line Items]          
Revolving loan facility, maximum borrowing capacity     11,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
   
Proceeds from credit facility     9,000,000us-gaap_ProceedsFromLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
   
Loans payable to bank 9,000,000us-gaap_LoansPayableToBank
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
9,000,000us-gaap_LoansPayableToBank
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
     
Note payable, total of periodic principal payments 0us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
       
Main Street Capital Corporation [Member] | Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Revolving loan facility, maximum borrowing capacity     2,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
   
Proceeds from credit facility     400,000us-gaap_ProceedsFromLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
   
Loans payable to bank 400,000us-gaap_LoansPayableToBank
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
300,000us-gaap_LoansPayableToBank
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
     
Proceeds from revolving credit facility 249,000us-gaap_ProceedsFromLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
       
Note payable, total of periodic principal payments $ 149,000us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember