CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Income Statement [Abstract]
Revenue	$ 7,163us-gaap_SalesRevenueServicesNet	$ 7,981us-gaap_SalesRevenueServicesNet
Operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	3,949glow_NetworkAndInfrastructure	4,870glow_NetworkAndInfrastructure
Research and development	298glow_GlobalManagedServices	166glow_GlobalManagedServices
Sales and marketing	708us-gaap_SellingAndMarketingExpense	825us-gaap_SellingAndMarketingExpense
General and administrative	1,403us-gaap_GeneralAndAdministrativeExpense	1,584us-gaap_GeneralAndAdministrativeExpense
Impairment charges	125us-gaap_AssetImpairmentCharges	326us-gaap_AssetImpairmentCharges
Depreciation and amortization	555us-gaap_DepreciationAndAmortization	688us-gaap_DepreciationAndAmortization
Total operating expenses	7,038us-gaap_CostsAndExpenses	8,459us-gaap_CostsAndExpenses
Income (loss) from operations	125us-gaap_OperatingIncomeLoss	(478)us-gaap_OperatingIncomeLoss
Interest and other expense:
Interest expense and other, net	337us-gaap_InterestExpense	334us-gaap_InterestExpense
Amortization of deferred financing costs	22us-gaap_AmortizationOfFinancingCosts	22us-gaap_AmortizationOfFinancingCosts
Total interest and other expense, net	359us-gaap_NonoperatingIncomeExpense	356us-gaap_NonoperatingIncomeExpense
Loss before income taxes	(234)	(834)
Income tax expense	0us-gaap_IncomeTaxExpenseBenefit	0us-gaap_IncomeTaxExpenseBenefit
Net loss	(234)us-gaap_NetIncomeLoss	(834)us-gaap_NetIncomeLoss
Preferred stock dividends	5	5
Net loss attributable to common stockholders	$ (239)	$ (839)
Net loss attributable to common stockholders per share:
Basic and diluted net loss per share (in dollars per share)	$ (0.01)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.02)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of shares of common stock:
Basic and diluted (in shares)	35,482	34,858

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