Note 3 - Securities (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Marketable Securities [Table Text Block]

	June 30, 2020
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Securities available for sale:
U.S. Treasury	$	9,998	$	—	$	—	$	9,998
Federal agencies and GSEs		51,382		2,088		32		53,438
Mortgage-backed and CMOs		193,961		6,988		30		200,919
State and municipal		44,935		1,751		6		46,680
Corporate		11,512		44		68		11,488
Total securities available for sale	$	311,788	$	10,871	$	136	$	322,523

	December 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
Securities available for sale:
U.S. Treasury	$	14,992	$	—	$	5	$	14,987
Federal agencies and GSEs		126,829		1,504		219		128,114
Mortgage-backed and CMOs		182,732		1,901		393		184,240
State and municipal		41,427		769		42		42,154
Corporate		9,514		186		—		9,700
Total securities available for sale	$	375,494	$	4,360	$	659	$	379,195

Schedule of Cost of Investments in Restricted Stock [Table Text Block]

	June 30, 2020		December 31, 2019
FRB stock	$	6,437	$	6,415
FHLB stock		2,257		2,215
Total restricted stock	$	8,694	$	8,630

Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table Text Block]

	Total				Less than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
U.S. Treasury	$	9,998	$	—	$	9,998	$	—	$	—	$	—
Federal agencies and GSEs		14,468		32		13,013		7		1,455		25
Mortgage-backed and CMOs		9,652		30		9,652		30		—		—
State and municipal		1,352		6		1,352		6		—		—
Corporate		8,631		68		—		—		8,631		68
Total	$	44,101	$	136	$	34,015	$	43	$	10,086	$	93

	Total				Less than 12 Months				12 Months or More
	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss
U.S. Treasury	$	14,987	$	5	$	14,987	$	5	$	—	$	—
Federal agencies and GSEs		69,095		219		31,779		44		37,316		175
Mortgage-backed and CMOs		89,391		393		66,324		266		23,067		127
State and municipal		4,262		42		3,108		37		1,154		5
Total	$	177,735	$	659	$	116,198	$	352	$	61,537	$	307

Schedule of Realized Gain (Loss) [Table Text Block]

	Three Months Ended June 30, 2020		Six Months Ended June 30, 2020
Realized gains (losses):
Gross realized gains	$	—	$	814
Gross realized losses		—		—
Net realized gains	$	—	$	814
Proceeds from sales of securities	$	—	$	5,811

	Three Months Ended June 30, 2019			Six Months Ended June 30, 2019
Realized gains (losses):
Gross realized gains	$	190		$	194
Gross realized losses		(54	)		(54	)
Net realized gains	$	136		$	140
Proceeds from sales of securities	$	29,878		$	29,878