Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012 sqft	Dec. 31, 2011	Jul. 31, 2012
Commitments and Contingencies (Textual) [Abstract]
Area of office space	4,500
Total rent expense	$ 71,500	$ 220,000
Rent expenses	4,115,500
Company received related to the sublease of the premises	0	102,000
Amount claimed in the Biostorage lawsuit	100.00%
Alleged claim plus additional legal fees	133,000
Navidea common stock value	306,357	306,357	1,146,000
Issuance of additional shares when certain cumulative net sales of the approved product are achieved	400,000
Children's hospital Boston and children's medical center corporation [Member]
Loss Contingencies [Line Items]
Amount claimed	642,906
Amount included in accrued expenses	642,906	642,906
Biostorage Technologies Inc [Member]
Loss Contingencies [Line Items]
Amount claimed	119,363
BCH and CMCC [Member]
Loss Contingencies [Line Items]
Amount claimed	$ (185,000)
Shares received against execution of sublicense granted	20,000