Acquisition (Schedule Of Proforma Summary Of The Results Of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010 Pro Forma [Member]
Business Acquisition [Line Items]
Total revenue	$ 24,963	$ 30,521	$ 34,088
Net income (loss)	$ (3,352)	$ (10,017)	$ 2,508
Net income (loss) per share, Basic	$ (0.69)	$ (2.07)	$ 0.55
Net income (loss) per share, Diluted	$ (0.69)	$ (2.07)	$ 0.53