Accounts receivables, net and other receivables (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accounts receivables, net and other receivables
Trade receivables, net of allowances	$ 25,562us-gaap_ReceivablesNetCurrent	$ 12,799us-gaap_ReceivablesNetCurrent
Unbilled access fees	2,142wifi_UnbilledAccessFeesCurrent	2,036wifi_UnbilledAccessFeesCurrent
Unbilled platform service arrangements	213	1,491
Accounts receivable, net	27,917us-gaap_AccountsReceivableNetCurrent	16,326us-gaap_AccountsReceivableNetCurrent
Unbilled access fees	115wifi_UnbilledAccessFeesNonCurrent	264wifi_UnbilledAccessFeesNonCurrent
Unbilled platform service arrangements		16
Non-current other receivables	115wifi_OtherReceivablesNetNonCurrent	280wifi_OtherReceivablesNetNonCurrent
Allowance for doubtful accounts
Balance at the beginning of the period	345	179	177
Additions charged to operations	191us-gaap_ProvisionForDoubtfulAccounts	209us-gaap_ProvisionForDoubtfulAccounts	45us-gaap_ProvisionForDoubtfulAccounts
Deductions from reserves, net	(142)	(43)	(43)
Balance at the end of the period	$ 394	$ 345	$ 179

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

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- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

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- Definition

The non-current portion of other receivables, net, that is amounts expected to be collected after one year or the normal operating cycle, if longer from third parties or arising from transactions not separately disclosed.

+ References

No definition available.

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- Definition

The amount due within one year or the normal operating cycle, if longer, for unbilled access fees recognized in conformity with revenue recognition criteria.

+ References

No definition available.

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The amount due for unbilled access fees recognized in conformity with revenue recognition criteria.

+ References

No definition available.

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- Definition

Current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party.

+ References

No definition available.

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Non-current portion of unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party.

+ References

No definition available.

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