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Acquisition and Related Goodwill - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
Jan. 05, 2018
Sep. 25, 2017
Dec. 31, 2017
Mar. 31, 2017
Business Acquisition [Line Items]        
Goodwill allocated     $ 1,719 $ 0
Infinia Technology Corporation (ITC)        
Business Acquisition [Line Items]        
Consideration transferred, excluding contingent consideration   $ 3,800    
Business combination, cash paid   $ 100    
Business combination, stock issued (in shares)   884,890    
Par value per share (in dollars per share)   $ 0.01    
Fair value per acquiree share (in dollars per share)   $ 4.02    
Resale registration statement, filing period, minimum   10 days    
Period for Make Whole Payment   90 days    
Liability for contingent consideration   $ 600 $ 700  
Intangible assets assumed   3,400    
Working capital   200    
Deferred tax liabilities   1,100    
Business combination, fair value   4,200    
Acquisition cost expensed (less than)   100    
Goodwill allocated   $ 1,700    
Subsequent event | Infinia Technology Corporation (ITC)        
Business Acquisition [Line Items]        
Make Whole Payment $ 700