Note 8 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

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

			Fair Value Measurements at September 30, 2015 Using
Description	Balance as of September 30, 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	$	186,923	$	---	$	186,923	$	---
States and political subdivisions		16,949		---		16,949		---
Mortgage-backed securities		1,492		---		1,492		---
Corporate debt securities		5,732		---		5,732		---
Other securities		136		---		136		---
Total securities available for sale	$	211,232	$	---	$	211,232	$	---

			Fair Value Measurements at December 31, 2014 Using
Description	Balance as of December 31, 2014		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	$	194,219	$	---	$	194,219	$	---
States and political subdivisions		19,380		---		19,380		---
Mortgage-backed securities		2,014		---		2,014		---
Corporate debt securities		7,104		---		7,104		---
Other securities		127		---		127		---
Total securities available for sale	$	222,844	$	---	$	222,844	$	---

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:
September 30, 2015	Impaired loans net of valuation allowance	$	2,320					$	2,320
December 31, 2014	Impaired loans net of valuation allowance		7,224		---		---		7,224

				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:
September 30, 2015	Other real estate owned net of valuation allowance	$	4,194					$	4,194
December 31, 2014	Other real estate owned net of valuation allowance		4,744		---		---		4,744

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

September 30, 2015	Valuation Technique	Unobservable Input	Range (Weighted Average)
Impaired loans	Present value of cash flows	Market rate for borrower (discount rate)	5.88% - 7.25%	(6.19%)

December 31, 2014	Valuation Technique	Unobservable Input	Range (Weighted Average)
Impaired loans	Present value of cash flows	Discount rate	5.88% - 9.50%	(6.15%)
Impaired loans	Discounted appraised value	Selling cost(1)	10%	(2)

September 30, 2015	Valuation Technique	Unobservable Input	Range (Weighted Average)
Other real estate owned	Discounted appraised value	Selling cost	0% – 11.11%	(6.04%)
Other real estate owned	Discounted appraised value	Discount for lack of marketability and age of appraisal	0% - 49.44%	(9.51%)

December 31, 2014	Valuation Technique	Unobservable Input	Range (Weighted Average)
Other real estate owned	Discounted appraised value	Selling cost	0% - 11%	(8.60%)
Other real estate owned	Discounted appraised value	Discount for lack of marketability and age of appraisal	0% - 48.77%	(20.81%)

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

	September 30, 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	$	12,446	$	12,446	$	---	$	---
Interest-bearing deposits		90,295		90,295		---		---
Securities		365,876		---		370,675		---
Restricted securities		1,129		---		1,129		---
Loans held for sale		1,331		---		1,331		---
Loans, net		617,638		---		---		628,160
Accrued interest receivable		5,659		---		5,659		---
Bank-owned life insurance		22,248		---		22,248		---
Financial Liabilities:
Deposits	$	962,530	$	---	$	765,359	$	196,097
Accrued interest payable		61		---		61		---

	December 31, 2014
	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	$	12,894	$	12,894	$	---	$	---
Interest-bearing deposits		102,548		102,548		---		---
Securities		384,296		---		390,547		---
Restricted securities		1,089		---		1,089		---
Loans held for sale		291		---		291		---
Loans, net		597,203		---		---		633,063
Accrued interest receivable		5,748		---		5,748		---
Bank-owned life insurance		21,797		---		21,797		---
Financial Liabilities:
Deposits	$	982,428	$	---	$	765,682	$	216,469
Accrued interest payable		68		---		68		---