XML 22 R37.htm IDEA: XBRL DOCUMENT v2.4.1.9
Debt (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Long-term debt, gross $ 11,185us-gaap_LongTermDebt $ 11,185us-gaap_LongTermDebt
Less current maturities (400)us-gaap_LongTermDebtCurrent (400)us-gaap_LongTermDebtCurrent
Long-term debt, net of current portion 10,785us-gaap_LongTermDebtNoncurrent 10,785us-gaap_LongTermDebtNoncurrent
Term Loan [Member] | Main Street Capital Corporation [Member]    
Debt Instrument [Line Items]    
Main Street Term Loan 9,000us-gaap_SeniorNotes
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
9,000us-gaap_SeniorNotes
/ us-gaap_CreditFacilityAxis
= glow_TermLoanMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
Revolving Credit Facility [Member] | Main Street Capital Corporation [Member]    
Debt Instrument [Line Items]    
Main Street Revolver 400us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
400us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= glow_MainStreetCapitalCorporationMember
Promissory Note with Stockholder Representative [Member] | Promissory Note [Member]    
Debt Instrument [Line Items]    
SRS Note $ 1,785us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember
$ 1,785us-gaap_NotesPayable
/ us-gaap_DebtInstrumentAxis
= glow_PromissoryNoteWithStockholderRepresentativeMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_NotesPayableOtherPayablesMember