Note 15 - Share-based Compensation - Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares
Outstanding, number of shares (in shares) | shares	281
Outstanding, weighted average exercise price (in dollars per share)	$ 10.22
Outstanding, weighted average fair value (in dollars per share)	$ 5.36	$ 5.32
Outstanding, aggregate intrinsic value | $	$ 418	$ 573
Exercised, number of shares (in shares) | shares	(2)
Exercised, weighted average exercise price (in dollars per share)	$ 0
Exercised, aggregate intrinsic value | $	$ 0
Outstanding, number of shares (in shares) | shares	279
Outstanding, weighted average exercise price (in dollars per share)	$ 10.25
Outstanding, weighted average remaining contractual life (Year)	2 years 10 months 20 days
Exercisable, number of shares (in shares) | shares	279
Exercisable, weighted average exercise price (in dollars per share)	$ 10.25
Exercisable, weighted average remaining contractual life (Year)	2 years 10 months 20 days
Exercisable, aggregate intrinsic value | $	$ 418
Vested and expected to vest, number of shares (in shares) | shares	279
Vested and expected to vest, weighted average exercise price (in dollars per share)	$ 10.25
Vested and expected to vest, weighted average remaining contractual life (Year)	2 years 10 months 20 days
Vested and expected to vest, aggregate intrinsic value | $	$ 418