Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plans (Details)

v3.19.2
Employee Benefit Plans (Details) - USD ($)
6 Months Ended
Dec. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Employee Benefit Plans      
Defined Benefit Plan, Plan Assets, Contributions by Employer $ 29,700 $ 0 $ 0