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Earnings Per Share (Earnings Per Share) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Earnings Per Share [Abstract]        
Net loss $ (400) $ (1,083) $ (2,137) $ (4,609)
Shares used in computing net loss per share - basic and diluted 18,338 17,905 18,202 15,787
Net loss per common share - basic and diluted $ (0.02) $ (0.06) $ (0.12) $ (0.29)
Stock issued during period related to secondary equity offering       4,198