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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jun. 30, 2019
Assets    
Interest rate swap not designated as cash flow hedge $ 10 $ 68
Total assets at fair value 10 68
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Assets    
Interest rate swap not designated as cash flow hedge 0 0
Total assets at fair value 0 0
Significant Other Observable Inputs (Level 2)    
Assets    
Interest rate swap not designated as cash flow hedge 10 68
Total assets at fair value 10 68
Significant Unobservable Inputs (Level 3)    
Assets    
Interest rate swap not designated as cash flow hedge 0 0
Total assets at fair value $ 0 $ 0