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		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Amortization expense – Finance ROU	$ 16	$ 17	$ 48	$ 50
Lease expense – Operating ROU	82	65	244	197
Interest expense – Finance ROU	$ 1	$ 1	$ 3	$ 2