Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Textual (Details)

v3.19.3
Related Party Transactions - Textual (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Related Party Transaction, Due from (to) Related Party [Abstract]          
Revenue from related parties $ 200,000 $ 0 $ 600,000 $ 400,000  
Accounts receivable from related parties $ 0   0   $ 200,000
Recovery of short swing profit     $ 77,000 $ 0