Quarterly report pursuant to Section 13 or 15(d)

Revenue from Contracts with Customers (Revenue by Geographic Area) (Details)

v3.20.2
Revenue from Contracts with Customers (Revenue by Geographic Area) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues $ 10,321,754 $ 9,727,060 $ 30,842,874 $ 23,074,984
United States [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 6,396,762 5,548,987 20,575,515 11,234,870
South Africa [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues 1,182,225      
Zimbabwe [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues       2,558,308
Other Countries [Member]        
Revenues from External Customers and Long-Lived Assets [Line Items]        
Revenues $ 2,742,767 $ 4,178,073 $ 10,267,359 $ 9,281,806