Stock Awards (Details) - Summary of stock option and restricted stock transactions (USD $)	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Shares Available For Grant [Member]
Stock Awards (Details) - Summary of stock option and restricted stock transactions [Line Items]
Shares Available for Grant	17,644	29,503
Granted	(18,861)
Vested
Forfeited	4,617
Canceled	2,385
Employee Stock Option [Member]
Stock Awards (Details) - Summary of stock option and restricted stock transactions [Line Items]
Stock Options, Number of Options Outstanding	123,944	114,896
Stock Options, Weighted Average Exercise Price (in Dollars per share)	$ 34.01	$ 41.67
Granted	18,861
Granted (in Dollars per share)	$ 4.95
Vested
Vested (in Dollars per share)
Forfeited	(4,617)
Forfeited (in Dollars per share)	$ 9.98
Canceled	(5,196)
Canceled (in Dollars per share)	$ 118.82
Restricted Stock [Member]
Stock Awards (Details) - Summary of stock option and restricted stock transactions [Line Items]
Restricted Stock, Number of Options Outstanding		72
Restricted Stock, Weighted Average Grand Date Fair Value (in Dollars per share)		$ 13.91
Granted
Granted (in Dollars per share)
Vested	(72)
Vested (in Dollars per share)	$ 13.91
Forfeited
Forfeited (in Dollars per share)
Canceled
Canceled (in Dollars per share)