Stock-Based Compensation (Details 4) (USD $)	12 Months Ended
	Dec. 31, 2012
Options Outstanding, Number of Shares (in shares)	1,340
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.020
Options Outstanding, Weighted - Average Remaining Life (in years)	8 years 7 months 6 days
Options Exercisable, Number of Shares (in shares)	627
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.020
Stock Option Plan Exercise Range 0.008 [Member]
Options Outstanding, Number of Shares (in shares)	200
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.008
Options Outstanding, Weighted - Average Remaining Life (in years)	9 years 7 months 6 days
Options Exercisable, Number of Shares (in shares)	12
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.008
Stock Option Plan Exercise Range 0.01 [Member]
Options Outstanding, Number of Shares (in shares)	50
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.010
Options Outstanding, Weighted - Average Remaining Life (in years)	9 years 3 months 18 days
Options Exercisable, Number of Shares (in shares)	6
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.010
Stock Option Plan Exercise Range 0.014 to 0.017 [Member]
Options Outstanding, Number of Shares (in shares)	970
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.016
Options Outstanding, Weighted - Average Remaining Life (in years)	8 years 9 months 18 days
Options Exercisable, Number of Shares (in shares)	559
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.020
Stock Option Plan Exercise Range 0.050 [Member]
Options Outstanding, Number of Shares (in shares)	110
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.050
Options Outstanding, Weighted - Average Remaining Life (in years)	8 years 8 months 12 days
Options Exercisable, Number of Shares (in shares)	47
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.050
Stock Option Plan Exercise Range 0.140 [Member]
Options Outstanding, Number of Shares (in shares)	10
Options Outstanding, Weighted - Average Exercise Price (in dollars per share)	$ 0.140
Options Outstanding, Weighted - Average Remaining Life (in years)	8 years 1 month 6 days
Options Exercisable, Number of Shares (in shares)	3
Options Exercisable, Weighted - Average Exercise Price (in dollars per share)	$ 0.140