Note 8 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

			Fair Value Measurements at June 30, 2016 Using
Description	Balance as of June 30, 2016		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Government agencies and corporations	$	281,723	$	---	$	281,723	$	---
States and political subdivisions		13,993		---		13,993		---
Mortgage-backed securities		1,144		---		1,144		---
Corporate debt securities		6,241		---		6,241		---
Other securities		141		---		141		---
Total securities available for sale	$	303,242	$	---	$	303,242	$	---

			Fair Value Measurements at December 31, 2015 Using
Description	Balance as of December 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
U.S. Government agencies and corporations	$	212,464	$	---	$	212,464	$	---
States and political subdivisions		16,475		---		16,475		---
Mortgage-backed securities		1,319		---		1,319		---
Corporate debt securities		5,746		---		5,746		---
Other securities		127		---		127		---
Total securities available for sale	$	236,131	$	---	$	236,131	$	---

Fair Value Measurements, Nonrecurring [Table Text Block]

				Carrying Value
Date	Description	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	Assets:
June 30, 2016	Impaired loans net of valuation allowance	$	1,727					$	1,727
December 31, 2015	Impaired loans net of valuation allowance		2,328		---		---		2,328

				Carrying Value
Date	Description	Balance		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	Assets:
June 30, 2016	Other real estate owned net of valuation allowance	$	3,425					$	3,425
December 31, 2015	Other real estate owned net of valuation allowance		4,165		---		---		4,165

Fair Value Inputs, Assets, Quantitative Information [Table Text Block]

June 30, 2016	Valuation Technique	Unobservable Input	Range (Weighted Average)
Impaired loans	Present value of cash flows	Market rate for borrower (discount rate)	5.50%	-	8.00%	(6.45%)

December 31, 2015	Valuation Technique	Unobservable Input	Range (Weighted Average)
Impaired loans	Present value of cash flows	Discount rate	6.00%	-	7.38%	(6.56%)

June 30, 2016	Valuation Technique	Unobservable Input	Range (Weighted Average)
Other real estate owned	Discounted appraised value	Selling cost	0% (1)	–	10.00%	(5.95%)
Other real estate owned	Discounted appraised value	Discount for lack of marketability and age of appraisal	0%	–	53.46%	(10.14%)

December 31, 2015	Valuation Technique	Unobservable Input	Range (Weighted Average)
Other real estate owned	Discounted appraised value	Selling cost	0% (1)	–	10.00%	(5.89%)
Other real estate owned	Discounted appraised value	Discount for lack of marketability and age of appraisal	0%	-	50.01%	(10.16%)

Fair Value, by Balance Sheet Grouping [Table Text Block]

	June 30, 2016
	Carrying Amount		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 due from banks	$	14,320	$	14,320	$	---	$	---
Interest-bearing deposits		75,892		75,892		---		---
Securities		441,666		---		449,483		---
Restricted securities		1,170		---		1,170		---
Loans held for sale		663		---		663		---
Loans, net		622,721		---		---		638,760
Accrued interest receivable		5,259		---		5,259		---
Bank-owned life insurance		22,699		---		22,699		---
Financial Liabilities:
Deposits	$	1,021,738	$	---	$	842,198	$	178,399
Accrued interest payable		56		---		56		---

	December 31, 2015
	Carrying Amount		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 due from banks	$	12,152	$	12,152	$	---	$	---
Interest-bearing deposits		130,811		130,811		---		---
Securities		388,159		---		394,163		---
Restricted securities		1,129		---		1,129		---
Mortgage loans held for sale		634		---		634		---
Loans, net		610,711		---		---		621,590
Accrued interest receivable		5,769		---		5,769		---
Bank-owned life insurance		22,401		---		22,401		---
Financial Liabilities:
Deposits	$	1,018,859	$	---	$	826,476	$	193,912
Accrued interest payable		56		---		56		---