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Marketable Securities Marketable Securities Table (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Current	$ 39,788	$ 39,302	$ 34,271
Certificates of Deposit [Member]
Debt Securities, Available-for-sale [Line Items]
Available-for-sale Securities, Current	$ 39,788	$ 39,302

X

- Definition

Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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