Note 8 - Commitments and Contingencies - Schedule of Future Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
2020	$ 1,047
2021	454
2022	88
Thereafter
Total future minimum lease payments	1,589
Less imputed interest	(154)
Total	1,435
Operating lease liability	930
Operating lease liability - non-current	505
Total	$ 1,435