Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Allowance for doubtful accounts	$ 22,000		$ 45,000
Impairment charges	0	$ 125,000
Capitalized Software Costs
Finite-Lived Intangible Assets [Line Items]
Capitalized computer software, additions	62,000	523,000
Capitalized computer software, amortization	179,000	125,000
Impairment charges	0	0
Pennsylvania and New Jersey | Property and Equipment, including Furniture and Leasehold Improvements
Finite-Lived Intangible Assets [Line Items]
Impairment of long-lived assets to be disposed of	0	125,000
Revenues
Finite-Lived Intangible Assets [Line Items]
Excise and sales taxes	254,000	330,000
Network and Infrastructure Costs
Finite-Lived Intangible Assets [Line Items]
Excise and sales taxes	$ 427,000	$ 309,000
Minimum | Capitalized Software Costs
Finite-Lived Intangible Assets [Line Items]
Estimated useful life (in years)	3 years
Maximum | Capitalized Software Costs
Finite-Lived Intangible Assets [Line Items]
Estimated useful life (in years)	4 years