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Revenue from Contracts with Customers (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Revenue From Contracts With Customers [Line Items]    
Contract with customer, liability, revenue recognized $ 3,573 $ 3,331
Other Current Assets [Member]    
Revenue From Contracts With Customers [Line Items]    
Capitalized commissions 198  
Selling, General and Administrative Expenses [Member]    
Revenue From Contracts With Customers [Line Items]    
Commission expense recognized $ 190 $ 253