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SHORT-TERM INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2018

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Available-for-sale [Table Text Block]

The following table summarizes the available-for-sale investments held as of December 31, 2018. There were no available-for-sale investments in prior periods.

Description		Fair value
U.S. government and agency securities and treasuries		$	66,218,000

X

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

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X

- References

No definition available.

+ Details

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