Discontinued Operations ( Details ) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Assets                      
Total $ 766       $ 2,659       $ 766 $ 2,659  
Operating results                      
Impairment of intangible assets 1,800       5,900       1,800 5,866  
Income (loss) from discontinued operations (1,425) (134) (285) (209) (3,927) (140) 170 164 (2,053) (3,733) 577
Springbox unit
                      
Assets                      
Property and equipment, net 350       81       350 81  
Intangible assets, net 416       2,578       416 2,578  
Total 766       2,659       766 2,659  
Operating results                      
Revenues                 4,523 6,200 8,173
Cost of revenues                 4,370 4,933 5,764
Depreciation and amortization                 374 756 765
Impairment of intangible assets                 1,800 5,866  
Other operating expenses                 1,400 867 683
Income (loss) before income taxes                 (3,421) (6,222) 961
Provision (benefit) for income taxes                 (1,368) (2,489) 384
Income (loss) from discontinued operations                 $ (2,053) $ (3,733) $ 577