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Business Description and Significant Accounting Policies - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Oct. 24, 2018
$ / shares
shares
Sep. 30, 2018
USD ($)
$ / shares
Sep. 30, 2018
USD ($)
segment
$ / shares
Dec. 31, 2017
$ / shares
Business Acquisition [Line Items]        
Number of operating segments | segment     1  
Common stock, par value (in dollars per share) | $ / shares   $ 0.0001 $ 0.0001 $ 0.0001
Ownership percentage in subsidiary   100.00% 100.00%  
Deferred revenue | $   $ 49 $ 49  
Deferred revenue recorded that was included in deferred revenue | $   $ 22 $ 341  
Subsequent Event | SharedLabs        
Business Acquisition [Line Items]        
Business acquisition, percent of voting interest acquired 100.00%      
Number of shares for SharedLabs acquisition (in shares) | shares 112,802,326      
Common stock, par value (in dollars per share) | $ / shares $ 0.0001      
Ownership interest in the combined company 34.00%