The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 32

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Name:	us-gaap_DebtConversionOriginalDebtAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Fair Value Measurements (Details Textual) (USD $)	12 Months Ended
Fair Value Measurements (Details Textual) (USD $)	Dec. 31, 2012	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Level 1 [Member] NAVB Stock [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Level 1 [Member] FPMI Stock [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Level 2 [Member] FPMI Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments shares		285,000	39,209	39,209
Fair Value Measurements (Textual) [Abstract]
Debt conversion amount	$ 16,000,000
Actual calculated fair value of the liability	$ 16,600,000