Note 3 - Securities (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Available-for-Sale Securities
September 30, 2020
Certificates of deposit	$	32,724	$	—	$	—		$	32,724
Municipal securities		503		9		—			512
Mortgage-backed securities - residential		6,124		305		—			6,429
Collateralized mortgage obligations - residential		2,381		4		(2	)		2,383
	$	41,732	$	318	$	(2	)	$	42,048
December 31, 2019
Certificates of deposit	$	48,666	$	—	$	—		$	48,666
Municipal securities		505		8		—			513
Mortgage-backed securities - residential		7,727		310		—			8,037
Collateralized mortgage obligations - residential		2,986		4		(13	)		2,977
	$	59,884	$	322	$	(13	)	$	60,193

Investments Classified by Contractual Maturity Date [Table Text Block]

	September 30, 2020
	Amortized Cost		Fair Value
Due in one year or less	$	32,576	$	32,577
Due after one year through five years		651		659
		33,227		33,236
Mortgage-backed securities - residential		6,124		6,429
Collateralized mortgage obligations - residential		2,381		2,383
	$	41,732	$	42,048

Realized Gain (Loss) on Investments [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Proceeds	$	—	$	—	$	—	$	3,722
Gross gains		—		—		—		295
Gross losses		—		—		—		—

Schedule of Unrealized Loss on Investments [Table Text Block]

			Less than 12 Months							12 Months or More							Total
	Count		Fair Value		Unrealized Loss			Count		Fair Value		Unrealized Loss			Count		Fair Value		Unrealized Loss
September 30, 2020
Collateralized mortgage obligations - residential		—	$	—	$	—			3	$	1,695	$	(2	)		3	$	1,695	$	(2	)
December 31, 2019
Collateralized mortgage obligations - residential		3	$	1,566	$	(10	)		1	$	937	$	(3	)		4	$	2,503	$	(13	)