XML 69 R57.htm IDEA: XBRL DOCUMENT v3.19.2
Commitments and Contingencies - Additional Information (Detail) - USD ($)
1 Months Ended
Feb. 28, 2010
Jul. 31, 2007
Jun. 30, 2019
Jan. 30, 2017
Dec. 31, 2016
Schedule Of Leases [Line Items]          
Purchase obligations to suppliers for future product deliverables     $ 2,300,000    
VersaVue Software and DynaCAD Product and Related Assets [Member] | Asset Purchase Agreement [Member]          
Schedule Of Leases [Line Items]          
Sale and transfer of intangible assets         $ 3,200,000
Holdback reserve related to sale and transfer of intangible assets       $ 350,000  
Proceeds from sale and transfer of intangible assets       $ 2,900,000  
CADx Medical Systems Inc [Member]          
Schedule Of Leases [Line Items]          
Tax re-assessment received   $ 6,800,000      
Reduced tax re-assessment received $ 703,000