Note 26 - Parent Company Financial Statements - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Amortization of debt issuance costs	$ 48	$ 45	$ 40
Provision for depreciation and amortization	1,738	2,061	1,908
(Increase) decrease in other assets	(10)	863	118
Increase (decrease) in other liabilities	1,094	(961)	306
Net cash provided by operating activities	20,732	13,631	11,884
Cash flows from investing activities:
Purchase of premises and equipment	(351)	(584)	(2,873)
Net cash used by investing activities	(63,559)	(136,484)	31,212
Cash dividends paid on common stock	(2,274)	(1,776)	(1,603)
Proceeds from stock options exercised	216	245	10
Net proceeds from issuance of common stock		26,778
Net cash provided by (used in) financing activities	23,222	121,416	(25,881)
Net increase (decrease) in cash and cash equivalents	(19,605)	(1,437)	17,215
Stock issued under employee plans	45	41
Vested and granted restricted stock issued under employee plans			84
Parent Company [Member]
Net income	15,730	7,344	5,259
Equity in undistributed net income of subsidiaries	(14,916)	(7,340)	(3,066)
Amortization of debt issuance costs	49	44	40
Provision for depreciation and amortization	22	6
(Increase) decrease in other assets	69	32	6
Increase (decrease) in other liabilities	227	59	(137)
Net cash provided by operating activities	1,181	145	2,102
Cash flows from investing activities:
Purchase of premises and equipment	(80)	(82)
Net cash used by investing activities	(80)	(82)
Repayment of term debt	(3,602)	(1,819)	(1,001)
Cash dividends paid on common stock	(2,274)	(1,776)	(1,603)
Proceeds from stock options exercised	216	245	10
Net proceeds from issuance of common stock		26,778
Net cash provided by (used in) financing activities	(5,660)	23,428	(2,594)
Net increase (decrease) in cash and cash equivalents	(4,559)	23,491	(492)
Cash and cash equivalents at the beginning of year	23,984	493	985
Cash and cash equivalents at the end of year	19,425	23,984	493
Stock issued under employee plans	45	41
Vested and granted restricted stock issued under employee plans			$ 84