Summary of Significant Accounting Policies (Schedule of ResponseDX Accounts Receivable) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Allowance for doubtful accounts	$ (2,226,890)	$ (2,071,706)
Total	6,059,111	7,810,417
ResponseDX [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	7,831,228	8,844,289
Allowance for doubtful accounts	(2,226,890)	(2,071,706)
Total	5,604,338	6,772,583
ResponseDX [Member] | Medicare [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	2,191,781	2,814,989
Private Payor [Member] | ResponseDX [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	$ 5,639,447	$ 6,029,300