Note 7 - Deposits - Summary of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Demand (non-interest-bearing)	$ 156,600	$ 176,325
Interest-bearing demand	557,803	532,351
Savings	92,078	101,433
Time ($250,000 and over)	56,659	43,807
Other time	232,489	148,532
Total interest-bearing	939,029	826,123
Total deposits	$ 1,095,629	$ 1,002,448