Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Allowance for doubtful accounts	$ 44		$ 44		$ 54
Impairment charges			138	$ 178
Capitalized Software Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Capitalized computer software, additions	226	$ 325	1,052	1,295
Capitalized computer software, amortization	166	100	458	385
Impairment charges	4	0	4	73
Pennsylvania and New Jersey [Member] | Property and Equipment, including Furniture and Leasehold Improvements [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets to be disposed of			134	105
Revenues [Member]
Finite-Lived Intangible Assets [Line Items]
Excise and sales taxes	249	314	838	968
Network and Infrastructure Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Excise and sales taxes	$ 262	$ 306	$ 815	$ 929
Minimum [Member] | Capitalized Software Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life			3 years
Minimum [Member] | Up-front Payment Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Deferred revenue, estimated recognition period			12 months
Maximum [Member] | Capitalized Software Costs [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life			4 years
Maximum [Member] | Up-front Payment Arrangement [Member]
Finite-Lived Intangible Assets [Line Items]
Deferred revenue, estimated recognition period			24 months