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Subsequent Events (Details) (USD $)	0 Months Ended	1 Months Ended					12 Months Ended		13 Months Ended
Subsequent Events (Details) (USD $)	May 14, 2009	Dec. 31, 2012	Dec. 31, 2010	Oct. 31, 2010	May 31, 2009	Mar. 31, 2009	Dec. 31, 2012	Jun. 30, 2010	Jun. 30, 2010
Subsequent Event [Line Items]
Common stock issued (in shares)	1,864,783	7,020,000	1,428,571	4,600,000	1,864,783	4,771,174		3,300,000	7,150,000
Gross proceeds from sale of common stock	$ 4,252,000			$ 20,700,000		$ 10,000,000		$ 17,314,000
Number of installment payments							6
Subsequent Event [Member]
Subsequent Event [Line Items]
Common stock issued (in shares)							1,053,000
Gross proceeds from sale of common stock							3,001,000
Payment obligation under termination agreement		1,200,000					1,200,000
Periodic payment under termination agreement							200,000

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

Number of new stock issued during the period.