XML 90 R79.htm IDEA: XBRL DOCUMENT v3.7.0.1
Business Combination - Additional Disclosures (Details) - USD ($)
3 Months Ended 6 Months Ended
Apr. 06, 2017
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Business Combination          
Cash consideration       $ 8,854,000 $ 0
Residential Control Systems, Inc          
Business Combination          
Initial purchase price $ 12,600,000        
Cash consideration 8,900,000     8,854,000  
Contingent consideration 3,700,000        
Acquisition costs $ 100,000        
Net sales   $ 1,400,000   1,400,000  
Net loss   $ 400,000   400,000  
Purchase price adjustment period 120 days        
Potential additional earnout payments $ 10,000,000.0        
Pro forma information, increase (decrease) in amortization expense, net     $ 200,000 $ 100,000 $ 400,000
Residential Control Systems, Inc | Valuation methodology based on projections of future operating income          
Business Combination          
Contingent consideration discount rate 24.80%