Note 24 - Earnings Per Common Share - Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
Net income										$ 15,730		$ 7,344		$ 5,259
Weighted average shares - basic (in shares)		16,265	16,252	16,245	16,225	16,195	16,191	15,014	13,416	16,248	[1]	15,207	[1]	13,367	[1]
Effect of potentially dilutive common shares (2) (in shares)	[2]									84		103		58
Weighted average number of common shares outstanding - diluted (in shares)		16,345	16,342	16,325	16,310	16,306	16,288	15,113	13,521	16,332		15,310		13,425
Earnings per share - basic (in dollars per share)										$ 0.97		$ 0.48		$ 0.39
Earnings per share - diluted (in dollars per share)										$ 0.96		$ 0.48		$ 0.39
Employee Stock Option [Member]
Anti-dilutive securities not included in earnings per share calculation (in shares)														45
Restricted Stock [Member]
Anti-dilutive securities not included in earnings per share calculation (in shares)												7

[1] Excludes unvested restricted shares because they do not have dividend or voting rights.

[2] Represents the effects of the assumed exercise of stock options and vesting of non-participating restricted shares.