Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Summary of Revenue by Geographic Area (Details)

v3.7.0.1
Summary of Significant Accounting Policies - Summary of Revenue by Geographic Area (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Concentration Risk [Line Items]        
Amount $ 34,240 $ 27,271 $ 62,250 $ 55,741
Geographic Concentration Risk | Net Sales        
Concentration Risk [Line Items]        
Percent of Total 100.00% 100.00% 100.00% 100.00%
United States        
Concentration Risk [Line Items]        
Amount $ 24,757 $ 21,160 $ 45,059 $ 45,280
United States | Geographic Concentration Risk | Net Sales        
Concentration Risk [Line Items]        
Percent of Total 72.00% 77.00% 72.00% 81.00%
Australia        
Concentration Risk [Line Items]        
Amount $ 5,351 $ 2,668 $ 10,578 $ 5,405
Australia | Geographic Concentration Risk | Net Sales        
Concentration Risk [Line Items]        
Percent of Total 16.00% 10.00% 17.00% 10.00%
Other        
Concentration Risk [Line Items]        
Amount $ 4,133 $ 3,443 $ 6,614 $ 5,056
Other | Geographic Concentration Risk | Net Sales        
Concentration Risk [Line Items]        
Percent of Total 12.00% 13.00% 11.00% 9.00%