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INVESTMENTS HELD-TO-MATURITY	6 Months Ended
INVESTMENTS HELD-TO-MATURITY	Jun. 30, 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 the six months ended June 30, 2019, we invested in commercial papers that were classified as investments held-to-maturity. As of June 30, 2019, both amortized cost value and fair value were $4.5 million with zero unrealized gain or loss. Remaining commercial papers totaling $3.0 million and $1.5 million mature in August and September of 2019, respectively. We did not recognize an other-than-temporary impairment or comprehensive gain or loss for the three and six months ended June 30, 2019. We recorded interest and investment income of $72,000 and $98,000 for the three months ended June 30, 2019 and 2018, respectively, and $178,000 and $146,000 for the six months ended June 30, 2019 and 2018, respectively, associated with our cash and investment accounts.