Annual report pursuant to Section 13 and 15(d)

Concentrations of Credit Risk (Details)

v3.19.2
Concentrations of Credit Risk (Details) - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Concentration Risk [Line Items]    
Account receivable $ 30,557,000 $ 16,026,000
Customer Concentration Risk [Member] | Single third party [Member]    
Concentration Risk [Line Items]    
Account receivable $ 4,000,000  
Revenues [Member] | Customer Concentration Risk [Member] | Federal Government Agency [Member]    
Concentration Risk [Line Items]    
Concentration risk 9.00% 8.00%