Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended	0 Months Ended		12 Months Ended		0 Months Ended
	Feb. 22, 2013	Dec. 31, 2014	Jul. 29, 2014	Oct. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Aug. 06, 2012	Dec. 31, 2011
Acquisition
Retained Earnings (Accumulated Deficit)		$ (62,884)			$ (43,363)
Increase (Decrease) the Valuation Allowance for Deferred Tax Assets		12,470			4,101	1,669		1,822
Estimated Fair Value
Contingent consideration		131			980
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill		42,403			42,403	26,744
Endeka Group Inc
Estimated Fair Value
Cash paid	4,894
Holdback consideration	275
Contingent consideration	1,329
Total purchase price	6,498
Recognized amounts of identifiable assets acquired and liabilities assumed:
Cash	20
Other current assets	44
Property and equipment	4,617
Other assets	12
Accounts payable	(992)
Other current liabilities	(211)
Notes payable and financed liabilities	(6,476)
Deferred tax liabilities	(2,637)
Net tangible liabilities acquired	(5,623)
Goodwill	5,776
Total purchase price	6,498
Holdback consideration paid		275
Endeka Group Inc | Existing contracts and relationships
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles	4,770
Estimated Useful Life	10 years
Endeka Group Inc | Technology
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles	930
Estimated Useful Life	6 years
Endeka Group Inc | Trademark and tradename
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles	300
Estimated Useful Life	10 years
Endeka Group Inc | Non-compete agreement
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles	250
Estimated Useful Life	2 years
Endeka Group Inc | Other intangibles
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles	95
Estimated Useful Life	10 years
Endeka Group Inc | Identifiable intangible assets | Minimum
Acquisition
Discount rate (as a percent)	40.00%
Royalty rates (as a percent)	0.50%
Endeka Group Inc | Identifiable intangible assets | Maximum
Acquisition
Discount rate (as a percent)	50.00%
Royalty rates (as a percent)	1.50%
Endeka Group Inc | Contingent consideration
Acquisition
Number of components of contingent consideration	2
Discount rate (as a percent)	50.50%
AWG
Acquisition
Number of U.S. airports where the acquired entity operates public Wi-Fi				17
Amount paid for settlement of the net equity adjustments			147
Contingent consideration paid to AWG shareholders			1,000
Change in Goodwill					(28)
Increase in Accrued and Other Liabilities					147
Retained Earnings (Accumulated Deficit)				(175)
Increase (Decrease) in Deferred Tax Liabilities					(175)
Increase (Decrease) the Valuation Allowance for Deferred Tax Assets					175
Estimated Fair Value
Cash paid				14,800
Net equity adjustments				147
Holdback consideration				1,600
Contingent consideration				980
Total purchase price				17,527
Recognized amounts of identifiable assets acquired and liabilities assumed:
Cash				215
Restricted cash				515
Accounts receivable				988
Other current assets				609
Property and equipment				2,297
Accounts payable				(563)
Accrued expenses				(515)
Other current liabilities				(134)
Capital lease obligations				(932)
Other non-current liabilities				(130)
Deferred tax liabilities				(3,386)
Net tangible liabilities acquired				(1,036)
Goodwill				9,883
Total purchase price				17,527
AWG | Existing contracts and relationships
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles				4,700
Estimated Useful Life				6 years 8 months 12 days
AWG | Technology
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles				270
Estimated Useful Life				6 years
AWG | Trademark and tradename
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles				120
Estimated Useful Life				3 years
AWG | Non-compete agreement
Recognized amounts of identifiable assets acquired and liabilities assumed:
Intangibles				3,590
Estimated Useful Life				5 years
AWG | Identifiable intangible assets
Acquisition
Royalty rates (as a percent)				0.50%
AWG | Identifiable intangible assets | Minimum
Acquisition
Discount rate (as a percent)				12.00%
AWG | Identifiable intangible assets | Maximum
Acquisition
Royalty rates (as a percent)				14.00%
AWG | Contingent consideration
Acquisition
Discount rate (as a percent)				3.10%
AWG and Endeka
Pro forma results
Revenue					114,492	110,957
Net loss					(4,945)	5,991
Cloud 9 Wireless Inc
Estimated Fair Value
Cash paid							3,500
Recognized amounts of identifiable assets acquired and liabilities assumed:
Current assets							899
Property and equipment							65
Intangible and other assets							1,758
Current liabilities							(454)
Goodwill							1,232
Net assets acquired							$ 3,500
Estimated Useful Life		5 years