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Acquisitions (Details) - USD ($)
 1 Months Ended 12 Months Ended
Apr. 27, 2016
Mar. 14, 2016
Jan. 07, 2016
Nov. 13, 2015
Dec. 10, 2014
Nov. 21, 2014
Nov. 30, 2016
Mar. 31, 2016
Nov. 30, 2015
Dec. 31, 2014
Nov. 30, 2014
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Jul. 25, 2016
Business Acquisition [Line Items]                              
Payments to acquire businesses, net of cash acquired                       $ 12,151,000 $ 7,664,000 $ 6,217,000  
Revenues                       74,767,000 69,911,000 64,574,000  
Loss on disposal of business                       746,000 $ 0 0  
Solution Q [Member]                              
Business Acquisition [Line Items]                              
Percentage of voting interests acquired (as a percent)           100.00%                  
Total purchase consideration           $ 6,100,000                  
Cash payment portion of purchase price           4,500,000                  
Cash acquired           $ 400,000                  
Revenue since date of acquisition                           300,000  
Solution Q [Member] | Common Stock [Member]                              
Business Acquisition [Line Items]                              
Numbers of share issued in acquisition (in shares)           150,977         150,977        
Value of shares issued in acquisition           $ 1,600,000         $ 1,600,000        
Mobile Commons [Member]                              
Business Acquisition [Line Items]                              
Percentage of voting interests acquired (as a percent)         100.00%                    
Total purchase consideration         $ 10,200,000                    
Cash payment portion of purchase price         5,700,000                    
Cash acquired         300,000                    
Revenue since date of acquisition                           500,000  
Contingent consideration         1,500,000.0                    
Decrease in contingent consideration liability         $ 500,000                    
Mobile Commons [Member] | Common Stock [Member]                              
Business Acquisition [Line Items]                              
Numbers of share issued in acquisition (in shares)         386,253         386,253          
Value of shares issued in acquisition         $ 4,500,000         $ 4,500,000       $ 4,500,000  
Ultriva, Inc. [Member]                              
Business Acquisition [Line Items]                              
Percentage of voting interests acquired (as a percent)       100.00%                      
Total purchase consideration       $ 7,200,000                      
Cash payment portion of purchase price       5,600,000                      
Cash acquired       400,000                      
Contingent consideration       $ 200,000                      
Ultriva, Inc. [Member] | Common Stock [Member]                              
Business Acquisition [Line Items]                              
Numbers of share issued in acquisition (in shares)       179,298     24,587   179,298            
Value of shares issued in acquisition       $ 1,400,000     $ 200,000   $ 1,388,000            
California-based Website Analytic Provider [Member]                              
Business Acquisition [Line Items]                              
Cash acquired     $ 400,000                        
Value of shares issued in acquisition                             $ 2,400,000
Payments to acquire businesses, net of cash acquired     8,000,000                        
Cash holdback     $ 1,200,000                        
Cash holdback, payment period (in months)     12 months                        
Additional consideration     $ 3,100,000                        
Revenues                       3,300,000      
Goodwill expected to be tax deductible                       4,900,000      
Hipcricket, Inc. [Member]                              
Business Acquisition [Line Items]                              
Numbers of share issued in acquisition (in shares)   1,000,000                          
Revenues                       3,400,000      
Value of shares issued   $ 5,700,000                          
Goodwill expected to be tax deductible                       8,200,000      
Hipcricket, Inc. [Member] | Common Stock [Member]                              
Business Acquisition [Line Items]                              
Numbers of share issued in acquisition (in shares)               1,000,000              
Value of shares issued in acquisition               $ 5,700,000              
Advanced Processing & Imaging, Inc. [Member]                              
Business Acquisition [Line Items]                              
Cash acquired $ 100,000                            
Payments to acquire businesses, net of cash acquired 4,100,000                            
Cash holdback $ 800,000                            
Cash holdback, payment period (in months) 12 months                            
Revenues                       1,600,000      
Goodwill expected to be tax deductible                       $ 0      
EPM Live Product Business [Member] | Discontinued Operations, Disposed of by Means Other than Sale, Exchange [Member] | Hipcricket, Inc. [Member]                              
Business Acquisition [Line Items]                              
Fair value of business transferred   5,900,000                          
Loss on disposal of business   $ 700,000