CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 462us-gaap_ProfitLoss	$ 5,794us-gaap_ProfitLoss	$ 8,649us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,969	4,808	3,874
Stock-based compensation expense	6,139us-gaap_ShareBasedCompensation	6,697us-gaap_ShareBasedCompensation	6,388us-gaap_ShareBasedCompensation
Deferred income taxes	1,972	1,656	(2,742)
Loss on disposal or sale of assets	1,828us-gaap_GainLossOnDispositionOfAssets	0us-gaap_GainLossOnDispositionOfAssets	0us-gaap_GainLossOnDispositionOfAssets
Allowance for doubtful accounts	1,422us-gaap_ProvisionForDoubtfulAccounts	446us-gaap_ProvisionForDoubtfulAccounts	616us-gaap_ProvisionForDoubtfulAccounts
Excess tax benefits from stock-based awards	(1,260)	(305)	386
Asset impairment charges	836us-gaap_AssetImpairmentCharges	1,430us-gaap_AssetImpairmentCharges	958us-gaap_AssetImpairmentCharges
Impairment of equity interest	0us-gaap_ImpairmentOfInvestments	1,773us-gaap_ImpairmentOfInvestments	0us-gaap_ImpairmentOfInvestments
Other non-cash charges	279us-gaap_OtherNoncashIncomeExpense	160us-gaap_OtherNoncashIncomeExpense	(248)us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities:
(Increase) decrease in accounts receivable	(5,565)	2,676	1,147
Decrease (increase) in inventories	1,836us-gaap_IncreaseDecreaseInInventories	(349)us-gaap_IncreaseDecreaseInInventories	1,575us-gaap_IncreaseDecreaseInInventories
Decrease (increase) in other assets	3,781	(3,582)	2,892
Increase in accounts payable and accrued expenses	403	865	200
Increase in deferred revenue	1,547	154	965
(Decrease) increase in deferred rent	(747)xoxo_IncreaseDecreaseInDeferredRent	(714)xoxo_IncreaseDecreaseInDeferredRent	694xoxo_IncreaseDecreaseInDeferredRent
Increase in other liabilities, net	113	734	19
Net cash provided by operating activities	20,015	22,243	25,373
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisitions, net of cash acquired	(5,725)	(600)	0
Additions to capitalized software	(4,282)us-gaap_PaymentsForSoftware	(4,348)us-gaap_PaymentsForSoftware	(1,501)us-gaap_PaymentsForSoftware
Payment to acquire investment	(4,000)	(1,300)	(1,500)
Maturity of U.S. Treasury Bills	2,599	2,598	2,599
Purchases of U.S. Treasury Bills	(2,599)xoxo_PurchasesofU.S.TreasuryBills	(2,598)xoxo_PurchasesofU.S.TreasuryBills	(2,599)xoxo_PurchasesofU.S.TreasuryBills
Decrease in cash associated with disposition	(1,640)xoxo_DecreaseinCashfromDisposition	0xoxo_DecreaseinCashfromDisposition	0xoxo_DecreaseinCashfromDisposition
Purchases of property and equipment	(786)	(1,620)	(1,330)
Other investing activities	(57)	(84)	(37)
Net cash used in investing activities	(16,490)	(7,952)	(4,368)
CASH FLOWS FROM FINANCING ACTIVITIES
Surrender of restricted common stock for income tax purposes	(4,796)	(1,782)	(1,947)
Repurchase of common stock	(1,628)	0	(18,936)
Excess tax benefits from stock-based awards	1,260	305	(386)
Proceeds pursuant to employee stock-based compensation plans	897	476	295
Net cash used in financing activities	(4,267)	(1,001)	(20,974)
(Decrease) increase in cash and cash equivalents	(742)	13,290	31
Cash and cash equivalents at beginning of year	90,697	77,407	77,376
Cash and cash equivalents at end of year	89,955	90,697	77,407
Supplemental information:
Cash paid for income taxes	475us-gaap_IncomeTaxesPaid	7,379us-gaap_IncomeTaxesPaid	3,102us-gaap_IncomeTaxesPaid
Cash paid for acquisitions and investments	$ 9,725	$ 1,900	$ 1,500

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