Note 17 - Fair Value Measurements and Fair Values of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value Disclosures [Abstract]

Financial Assets Measured at Fair Value on a Recurring and Nonrecurring Basis

December 31, 2016	Quotedprices in active markets for identical assets (Level 1)		Significant other observable input (Level 2)		Significant unobservable inputs (Level 3)		Balance at end of period
Recurring fair value measurements
Trading Securities
State and municipal securities	$	—	$	3,596	$	—	$	3,596
Securities available-for-sale
U.S. Government agency securities		—	$	76,650		—	$	76,650
State and municipal securities		—		72,295		—		72,295
U.S. Government agencies and sponsored enterprises (GSEs):
Mortgage-backed securities		—		145,301		—		145,301
Collateralized mortgage obligations (CMOs)		—		77,415		—		77,415
Pooled trust preferred securities		—		—	$	2,281		2,281
Corporate debt securities		—		8,030		—		8,030
Equity securities	$	8,503		—		—		8,503
Total securities available-for-sale	$	8,503	$	379,691	$	2,281	$	390,475
Total recurring fair value measurements	$	8,503	$	383,287	$	2,281	$	394,071
Nonrecurring fair value measurements *
Impaired loans	$	—	$	—	$	2,899	$	2,899
Mortgage servicing rights		—		—		58		58
Total nonrecurring fair value measurements	$	—	$	—	$	2,957	$	2,957

* impairment

December 31, 2015	Quoted prices in active markets for identical assets (Level 1)		Significant other observable input (Level 2)		Significant unobservable inputs (Level 3)		Balance at end of period
Recurring fair value measurements
Trading Securities
State and municipal securities	$	—	$	4,189	$	—	$	4,189
Securities available-for-sale
U.S. Government agency securities		—	$	61,779		—	$	61,779
State and municipal securities		—		78,954		—		78,954
U.S. Government agencies and sponsored enterprises (GSEs):
Mortgage-backed securities		—		136,681		—		136,681
Collateralized mortgage obligations (CMOs)		—		65,610		—		65,610
Pooled trust preferred securities		—		—	$	2,653		2,653
Corporate debt securities		—		9,004		—		9,004
Equity securities	$	7,234		—		—		7,234
Total securities available-for-sale	$	7,234	$	352,028	$	2,653	$	361,915
Total recurring fair value measurements	$	7,234	$	356,217	$	2,653	$	366,104
Nonrecurring fair value measurements *
Impaired loans	$	—	$	—	$	1,698	$	1,698
Mortgage servicing rights		—		—		133		133
Total nonrecurring fair value measurements	$	—	$	—	$	1,831	$	1,831

* impairment

Quantitative Information about Assets Measured at Fair Value

	Quantitative information about Level 3 fair value measurements
December 31, 2016	Fairvalue		Valuation techniques		Unobservable input		Valueor range of values
Impaired loans	$	938	Appraisalof collateral	(1)	Appraisal adjustments	(2)	-10% to -80%
					Liquidation expenses	(3)	-10%
Impaired loans		76	Used commercial vehicle and equipment guides		Guide value discounts	(4)	0% to -25%
Impaired loans		1,880	Financial statement values for UCC collateral		Financial statement value discounts	(5)	-20% to -50%
Impaired loans		5	Agreement of sale	(6)
Mortgage servicing rights		58	Discounted cash flow		Remaining term		2 - 27 yrs
					Discount rate		14% to 16%

	Quantitative information about Level 3 fair value measurements
December 31, 2015	Fair value		Valuation techniques		Unobservable input		Value or range of values
Impaired loans	$	1,331	Appraisal of collateral	(1)	Appraisal adjustments	(2)	-15% to -80%
					Liquidation expenses	(3)	-10%
Impaired loans		199	Used commercial vehicle and equipment guides		Guide value discounts	(4)	0% to -30%
Impaired loans		168	Financial statement values for UCC collateral		Financial statement value discounts	(5)	-25% to -70%
Mortgage servicing rights		133	Discounted cash flow		Remaining term		3 - 28 yrs
					Discount rate		10% to 12%

Available-for-sale Securities Measured at Fair Value Using Significant Unobservable Inputs

	Fair value measurements using significant unobservable inputs (Level 3)
Securities available-for-sale	2016			2015
Balance, beginning of year	$	2,653		$	2,439
Payments received		(381	)		(228	)
Total gains or losses (realized/unrealized)
Included in earnings		—			—
Included in other comprehensive income		9			442
Transfers in and/or out of Level 3		—			—
Balance, end of year	$	2,281		$	2,653

Financial and Off-balance Sheet Instruments

					Fair value measurements
December 31, 2016	Carrying amount		Fair value		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Financial assets
Cash and cash equivalents	$	10,721	$	10,721	$	10,721		—		—
Investment securities:
Trading		3,596		3,596		—	$	3,596		—
Available-for-sale		390,475		390,475		8,503		379,691	$	2,281
Restricted investment in bank stocks		1,017		1,017		—		1,017		—
Loans held-for-sale		789		789		—		789		—
Net loans		625,685		626,052		—		—		626,052
Mortgage servicing rights		498		579		—		—		579
Accrued interest receivable		3,128		3,128		—		3,128		—
Financial liabilities
Deposits with no stated maturities	$	687,773	$	687,773	$	687,773		—	$	—
Deposits with stated maturities		225,582		225,403		—	$	225,403		—
Short-term borrowings		52,660		52,660		52,660		—		—
Accrued interest payable		335		335		—		335		—
Off-balance sheet instruments
Commitments to extend credit	$	—	$	—	$	—	$	—	$	—
Standby letters of credit		—		—		—		—		—

					Fair value measurements
December 31, 2015	Carrying amount		Fair value		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Financial assets
Cash and cash equivalents	$	16,991	$	16,991	$	16,991		—		—
Investment securities:
Trading		4,189		4,189		—	$	4,189		—
Available-for-sale		361,915		361,915		7,234		352,028	$	2,653
Held-to-maturity		147		151		—		151		—
Restricted investment in bank stocks		508		508		—		508		—
Loans held-for-sale		987		1,004		—		1,004		—
Net loans		607,716		610,315		—		—		610,315
Mortgage servicing rights		504		642		—		—		642
Accrued interest receivable		2,562		2,562		—		2,562		—
Financial liabilities
Deposits with no stated maturities	$	662,410	$	662,410	$	662,410		—	$	—
Deposits with stated maturities		227,376		227,862		—	$	227,862		—
Short-term borrowings		37,163		37,163		37,163		—		—
Accrued interest payable		330		330		—		330		—
Off-balance sheet instruments
Commitments to extend credit	$	—	$	—	$	—	$	—	$	—
Standby letters of credit		—		—		—		—		—