Short-Term And Long-Term Investments (Narrative) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Investments, Debt and Equity Securities Statement [Line Items]
Short-term investments	$ 355	$ 1,431
Long-term investments	725	725
Bank Guarantees [Member]
Investments, Debt and Equity Securities Statement [Line Items]
Short-term investments	355	$ 258
Preferred Stock [Member] \| Accounting Standards Update 2016-01 [Member]
Investments, Debt and Equity Securities Statement [Line Items]
Investment	725
Long-term investments	$ 725

Investments, Debt and Equity Securities Statement [Line Items]

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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- Definition

Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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