Annual report pursuant to Section 13 and 15(d)

INVESTMENTS HELD-TO-MATURITY

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INVESTMENTS HELD-TO-MATURITY
12 Months Ended
Dec. 31, 2019
Investments [Abstract]  
INVESTMENTS HELD-TO-MATURITY
INVESTMENTS HELD-TO-MATURITY
We classify investments as held-to-maturity when we have the positive intent and ability to hold the securities to maturity.
During 2018, we invested in U.S. Treasury bills, commercial papers and a certificate of deposit that were classified as investments held-to-maturity. As of December 31, 2018, both amortized cost value and fair value were $16.9 million with zero unrealized gain or loss. During 2018, U.S. Treasury bills totaling $25.0 million matured in April 2018 and certain commercial papers totaling $14.6 million also matured during the year. All investments as of December 31, 2018 matured in January 2019.
During 2019, we invested in commercial papers and certificates of deposit that were classified as investments held-to-maturity. As of December 31, 2019, all of our investments held-to-maturity had matured and we had no investments classified as held-to-maturity.
We recorded interest and investment income of $253,000 and $481,000 for the years ended December 31, 2019 and 2018, respectively, associated with our cash and investment accounts. We did not recognize an other-than-temporary impairment or a comprehensive gain or loss for the years ended December 31, 2019 and 2018.