Note 13 - Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating lease expense (1)	[1]	$ 210	$ 137	$ 420	$ 295
Operating lease income (2)	[2]	212		421	34
Operating lease right-of-use assets		3,776		3,776
Operating lease liabilities		$ 3,792		$ 3,792
Weighted-average remaining lease term (in years) (Year)		7 years 102 days		7 years 102 days
Weighted-average discount rate		3.19%		3.19%
Operating cash flows from operating leases				$ 385	$ 230

[1] Includes short-term lease costs. For the three and six month periods ended June 30, 2019 and 2018, short-term lease costs were nominal in amount.

[2] Operating lease income includes rental income from owned properties.