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Financial Instruments Measured At Fair Value (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Number of foreign exchange hedges discontinued $ 0 $ 0 $ 0 $ 0  
Cash Flow Hedging [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Notional amount 10,095,000   10,095,000   $ 2,275,000
Fair value amounts of derivative contracts, net liability (102,000)   (102,000)    
Fair value amounts of derivative contracts, net assets         83,000
Fair Value Hedging [Member] | Not Designated as Hedging Instrument [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Notional amount 58,746,000   58,746,000   41,845,000
Fair value amounts of derivative contracts, net liability (233,000)   (233,000)   (233,000)
Fair value amounts of derivative contracts, net assets $ 440,000   $ 440,000   $ 440,000
Yeo Hiap Seng Limited [Member]          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Ownership percentage, less than 1.00%   1.00%