Summary of Significant Accounting Policies (Schedule of ResponseDX Accounts Receivable) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Allowance for doubtful accounts	$ (991,990)	$ (838,750)
Total	5,373,023	4,047,059
Medicare [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Total	890,936	506,308
ResponseDX [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	3,815,348	3,183,973
Allowance for doubtful accounts	(991,990)	(838,750)
Total	2,823,358	2,345,223
ResponseDX [Member] | Medicare [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	890,936	506,308
ResponseDX [Member] | Private Payor [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable	2,924,412	2,634,838
ResponseDX [Member] | Other Payor [Member]
Health Care Organization, Receivable and Revenue Disclosures [Line Items]
Accounts receivable		$ 42,827