Note 8 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	December 31,
	2015			2014			2013
Change in benefit obligation
Projected benefit obligation at beginning of year	$	19,324		$	17,185		$	18,054
Service cost		620			524			596
Interest cost		669			663			617
Actuarial (gain) loss		798			1,674			(1,149	)
Benefits paid		(984	)		(722	)		(933	)
Projected benefit obligation at end of year	$	20,427		$	19,324		$	17,185
Change in plan assets
Fair value of plan assets at beginning of year	$	17,130		$	16,605		$	14,325
Actual return on plan assets		(155	)		884			2,225
Employer contribution		140			363			988
Benefits paid		(984	)		(722	)		(933	)
Fair value of plan assets at end of year	$	16,131		$	17,130		$	16,605
Funded status at the end of the year	$	(4,296	)	$	(2,194	)	$	(580	)
Amounts recognized in the Consolidated Balance Sheet
Deferred tax asset	$	1,504		$	768		$	203
Other liabilities		(4,296	)		(2,194	)		(580	)
Total amounts recognized in the Consolidated Balance Sheet	$	(2,792	)	$	(1,426	)	$	(377	)
Amounts recognized in accumulated other comprehensive (loss), net
Net loss	$	(8,627	)	$	(6,922	)	$	(5,282	)
Prior service cost		559			669			779
Deferred tax asset		2,798			2,163			1,550
Amount recognized	$	(5,270	)	$	(4,090	)	$	(2,953	)

Accrued/Prepaid benefit cost, net
Benefit obligation	$	(20,427	)	$	(19,324	)	$	(17,185	)
Fair value of assets		16,131			17,130			16,605
Unrecognized net actuarial loss		8,627			6,922			5,282
Unrecognized prior service cost		(559	)		(669	)		(779	)
Deferred tax liability		(1,294	)		(1,395	)		(1,347	)
Prepaid benefit cost included in other liabilities	$	2,478		$	2,664		$	2,576
Components of net periodic benefit cost
Service cost	$	620		$	524		$	596
Interest cost		669			663			617
Expected return on plan assets		(1,166	)		(1,112	)		(984	)
Amortization of prior service cost		(110	)		(110	)		(101	)
Recognized net actuarial loss		414			262			532
Net periodic benefit cost	$	427		$	227		$	660
Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net (gain) loss	$	1,705		$	1,640		$	(2,921	)
Amortization of prior service cost		110			110			101
Deferred income tax expense (benefit)		(635	)		(612	)		987
Total recognized	$	1,180		$	1,138		$	(1,833	)
Total recognized in net periodic benefit cost and other comprehensive loss	$	2,242		$	1,977		$	(2,160	)
Weighted average assumptions at end of the year
Discount rate used for net periodic pension cost		3.75	%		4.50	%		3.75	%
Discount rate used for disclosure		4.00	%		3.75	%		4.50	%
Expected return on plan assets		7.50	%		7.50	%		7.50	%
Rate of compensation increase		3.00	%		3.00	%		3.00	%

Schedule of Allocation of Plan Assets [Table Text Block]

	Fair Value Measurements at December 31, 2015
Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	876	$	876	$	---	$	---
Equity securities:
U. S. companies		9,600		9,600		---		---
International companies		404		404		---		---
Equities mutual funds (1)		195		195		---		---
U. S. government agencies and corporations		104		---		104		---
State and political subdivisions		233		---		233		---
Corporate bonds – investment grade (2)		4,719		---		4,719		---
Total pension plan assets	$	16,131	$	11,075	$	5,056	$	---

	Fair Value Measurements at December 31, 2014
Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	737	$	737	$	---	$	---
Equity securities:
U. S. companies		8,729		8,729		---		---
International companies		274		274		---		---
Equities mutual funds (1)		1,861		1,861		---		---
U. S. government agencies and corporations		107		---		107		---
State and political subdivisions		365		---		365		---
Corporate bonds – investment grade (2)		5,057		---		5,057		---
Total pension plan assets	$	17,130	$	11,601	$	5,529	$	---

Schedule of Expected Benefit Payments [Table Text Block]

	2016		$	3,737
	2017		$	2,118
	2018		$	1,117
	2019		$	814
	2020		$	1,386
2021	-	2025	$	3,883