Consolidated Statements of Comprehensive Loss - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Revenue:        
Revenue $ 8,595   $ 16,079 $ 18,056
Cost of Revenue:        
Cost of revenue 3,947   7,356  
Gross Profit 4,648   8,723  
Operating expenses:        
Sales and marketing 2,021   4,188  
General and administrative 2,498   5,237  
Research and development 735   1,443  
Merger transaction expenses 870   1,291  
Depreciation and amortization 746   1,498  
Total operating expenses 6,870   13,657  
Operating loss (2,222)   (4,934)  
Other Income (Expense):        
Gain on change in warrant liability     1  
Interest expense and other income - net 79   (69)  
Loss before income taxes (2,143)   (5,002)  
Net loss (2,143)   (5,002)  
Other comprehensive loss -        
Foreign currency translation adjustments (213)   (59)  
Total comprehensive loss $ (2,356)   $ (5,061)  
Net loss per share of Common Stock (basic and diluted):        
Net loss per share of Common Stock (basic and diluted) $ (0.19)   $ (0.45)  
Weighted average shares used in computing basic and diluted net loss per share of Common Stock 11,156,257   11,156,257  
Products        
Revenue:        
Revenue $ 3,699   $ 6,694  
Cost of Revenue:        
Cost of revenue 2,423   4,254  
Maintenance And Content Services        
Revenue:        
Revenue 3,491   6,631  
Cost of Revenue:        
Cost of revenue 342   702  
Professional Services        
Revenue:        
Revenue 1,405   2,754  
Cost of Revenue:        
Cost of revenue $ 1,182   $ 2,400  
Calculated under Revenue Guidance in Effect before Topic 606 [Member]        
Revenue:        
Revenue   $ 9,087   18,056
Cost of Revenue:        
Cost of revenue   3,466   7,491
Gross Profit   5,621   10,565
Operating expenses:        
Sales and marketing   2,398   4,534
General and administrative   2,706   5,554
Research and development   644   1,312
Depreciation and amortization   788   1,562
Total operating expenses   6,536   12,962
Operating loss   (915)   (2,397)
Other Income (Expense):        
Gain on change in warrant liability       231
Interest expense and other income - net   (283)   (308)
Loss before income taxes   (1,198)   (2,474)
Income tax expense   (12)   (12)
Net loss   (1,186)   (2,462)
Other comprehensive loss -        
Foreign currency translation adjustments   164   212
Total comprehensive loss   $ (1,022)   $ (2,250)
Net loss per share of Common Stock (basic and diluted):        
Net loss per share of Common Stock (basic and diluted)   $ (0.11)   $ (0.22)
Weighted average shares used in computing basic and diluted net loss per share of Common Stock   11,156,257   11,156,257
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Products        
Revenue:        
Revenue   $ 3,854   $ 7,737
Cost of Revenue:        
Cost of revenue   1,944   4,290
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Maintenance And Content Services        
Revenue:        
Revenue   3,381   6,589
Cost of Revenue:        
Cost of revenue   391   800
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Professional Services        
Revenue:        
Revenue   1,852   3,730
Cost of Revenue:        
Cost of revenue   $ 1,131   $ 2,401