Note 2 - Investments	6 Months Ended
Jun. 30, 2019
Notes to Financial Statements
Investment [Text Block]	Note 2. Investments At June 30, 2019 and December 31, 2018, the fair value of our non-current investments was $5.8 million and $6.6 million, respectively. Our non-current investments consist of marketable equity securities which are carried at fair value. The cost basis of our non-current investments was approximately $8.0 million and $7.7 million at June 30, 2019 and December 31, 2018, respectively. During the six months ended June 30, 2019, we recognized $1.0 million in net unrealized losses in current earnings. During the six months ended June 30, 2018, we recognized $0.3 million in net unrealized losses in current earnings.

Note 2 - Investments

6 Months Ended

Jun. 30, 2019

Note 2. Investments

At June 30, 2019 and December 31, 2018, the fair value of our non-current investments was $5.8 million and $6.6 million, respectively. Our non-current investments consist of marketable equity securities which are carried at fair value. The cost basis of our non-current investments was approximately $8.0 million and $7.7 million at June 30, 2019 and December 31, 2018, respectively. During the six months ended June 30, 2019, we recognized $1.0 million in net unrealized losses in current earnings. During the six months ended June 30, 2018, we recognized $0.3 million in net unrealized losses in current earnings.