Note 10 - Right-of-use Asset and Leasing Liabilities - Schedule of Items Appearing on the Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Amortization expense – Finance ROU	$ 11	$ 16	$ 21	$ 32
Lease expense – Operating ROU	82	83	165	162
Interest expense – Finance ROU		$ 1	$ 1	$ 2