XML 60 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
Business Combination (Details) - USD ($)
 12 Months Ended
Aug. 03, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Business Acquisition [Line Items]        
Business Acquisition, Percentage of Voting Interests Acquired 100.00%      
Payments to Acquire Businesses, Net of Cash Acquired $ 34,100,000 $ 0 $ 34,130,000 $ 0
Business Combination, Acquisition Related Costs   95,000 720,000 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill 18,600,000      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue 600,000      
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual   9,500,000    
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual   (4,800,000)    
Goodwill, Acquired During Period     17,052,000  
Goodwill 17,052,000 38,231,000 $ 38,458,000 $ 20,096,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount   0    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent $ 526,000 778,000    
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments Related to Previous Period   $ (252,000)