Business Combinations (Details) (RangeMark, USD $)	0 Months Ended
	Nov. 07, 2012 item
Business Combinations
Aggregate purchase consideration	$ 2,500,000
Number of installments in which purchase consideration is payable	4
Assets
Receivables	106,000
Intangible assets	1,530,000
Other assets	40,000
Total assets acquired	1,676,000
Liabilities
Accrued expenses and other liabilities	538,000
Total liabilities assumed	538,000
Net assets acquired	1,138,000
Purchase price (present value)	2,350,000
Goodwill resulting from transaction	$ 1,212,000
Intellectual property
Liabilities
Estimated useful life	5 years
Trade name
Liabilities
Estimated useful life	10 years