Note 7 - Intangible Assets and Loan Servicing (Tables)

12 Months Ended

Dec. 31, 2016

Transfers And Servicing Of Financial Assets [Abstract]

Activity of Mortgage Servicing Rights

Year ended December 31,	2016			2015			2014
Balance at beginning of year	$	504		$	504		$	519
Mortgage servicing rights capitalized		69			79			48
Mortgage servicing rights amortized		(79	)		(87	)		(71	)
Fair market value adjustments		4			8			8
Balance at end of year	$	498		$	504		$	504

Annual Estimated Amortization Expense of Intangible Assets

2017	$	81
2018		69
2019		59
2020		51
2021		43