Quarterly report pursuant to Section 13 or 15(d)

Collaboration and Stock Purchase Agreements - Additional Information (Details)

v3.19.2
Collaboration and Stock Purchase Agreements - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Feb. 08, 2019
Jan. 30, 2019
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Nov. 12, 2018
Revenues     $ 9,250 $ 6,815 $ 15,727 $ 12,718  
Business Acquisition, Percentage of Voting Interests Acquired             33.30%
Business Combination, Contingent Consideration, Liability             $ 180,000
Caelum [Member]              
Sale of Stock, Consideration Received on Transaction   $ 30,000          
Sale of Stock Percentage of Shares Transferred on Transaction   19.90%          
Sales [Member] | Avenue [Member]              
Revenues         325,000    
Sales After January One, Twenty Thousand Twenty Nine [Member] | Avenue [Member]              
Revenues         $ 1,500,000    
Gross Profit Percentage To Net Sales         20.00%    
Slab One [Member] | Avenue [Member]              
Gross Profit Percentage To Net Sales         10.00%    
Slab One [Member] | Sales [Member] | Avenue [Member]              
Revenues         $ 400,000    
Slab One [Member] | Sales After January One, Twenty Thousand Twenty Nine [Member] | Avenue [Member]              
Revenues         $ 100,000    
Slab Two [Member] | Avenue [Member]              
Gross Profit Percentage To Net Sales         12.50%    
Slab Two [Member] | Sales [Member] | Avenue [Member] | Maximum [Member]              
Revenues         $ 500,000    
Slab Two [Member] | Sales [Member] | Avenue [Member] | Minimum [Member]              
Revenues         $ 400,000    
Slab Three [Member] | Avenue [Member]              
Gross Profit Percentage To Net Sales         15.00%    
Slab Three [Member] | Sales [Member] | Avenue [Member]              
Revenues         $ 500,000    
SPMA [Member]              
Business Combination, Consideration Transferred $ 7,000            
First Stage Member [Member] | SPMA [Member]              
Business Combination, Consideration Transferred $ 31,500