Note 8 - Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	December 31,
	2014			2013			2012
Change in benefit obligation
Projected benefit obligation at beginning of year	$	17,185		$	18,054		$	15,808
Service cost		524			596			468
Interest cost		663			617			738
Actuarial (gain) loss		1,674			(1,149	)		1,554
Benefits paid		(722	)		(933	)		(514	)
Projected benefit obligation at end of year	$	19,324		$	17,185		$	18,054
Change in plan assets
Fair value of plan assets at beginning of year	$	16,605		$	14,325		$	13,326
Actual return on plan assets		884			2,225			963
Employer contribution		363			988			550
Benefits paid		(722	)		(933	)		(514	)
Fair value of plan assets at end of year	$	17,130		$	16,605		$	14,325
Funded status at the end of the year	$	(2,194	)	$	(580	)	$	(3,729	)
Amounts recognized in the Consolidated Balance Sheet
Deferred tax asset	$	768		$	203		$	1,305
Other liabilities		(2,194	)		(580	)		(3,729	)
Total amounts recognized in the Consolidated Balance Sheet	$	(1,426	)	$	(377	)	$	(2,424	)
Amounts recognized in accumulated other comprehensive (loss), net
Net loss	$	(6,922	)	$	(5,282	)	$	(8,202	)
Prior service cost		669			779			879
Deferred tax asset		2,163			1,550			2,538
Amount recognized	$	(4,090	)	$	(2,953	)	$	(4,785	)
Accrued/Prepaid benefit cost, net
Benefit obligation	$	(19,324	)	$	(17,185	)	$	(18,054	)
Fair value of assets		17,130			16,605			14,325
Unrecognized net actuarial loss		6,922			5,282			8,202
Unrecognized prior service cost		(669	)		(779	)		(879	)
Deferred tax liability		(1,395	)		(1,347	)		(1,233	)
Prepaid benefit cost included in other liabilities	$	2,664		$	2,576		$	2,361
Components of net periodic benefit cost
Service cost	$	524		$	596		$	468
Interest cost		663			617			738
Expected return on plan assets		(1,112	)		(984	)		(1,075	)
Amortization of prior service cost		(110	)		(101	)		(101	)
Recognized net actuarial loss		262			532			508
Net periodic benefit cost	$	227		$	660		$	538
Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net (gain) loss	$	1,640		$	(2,921	)	$	1,157
Amortization of prior service cost		110			101			101
Deferred income tax expense (benefit)		(612	)		987			(440	)
Total recognized	$	1,138		$	(1,833	)	$	818
Total recognized in net periodic benefit cost and other comprehensive loss	$	1,977		$	(2,160	)	$	1,796
Weighted average assumptions at end of the year
Discount rate used for net periodic pension cost		4.50	%		3.75	%		4.50	%
Discount rate used for disclosure		3.75	%		4.50	%		3.75	%
Expected return on plan assets		7.50	%		7.50	%		8.00	%
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, 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	$	---

	Fair Value Measurements at December 31, 2013
Asset Category	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash	$	1,319	$	1,319	$	---	$	---
Equity securities:
U. S. companies		8,091		8,091		---		---
International companies		137		137		---		---
Equities mutual funds (1)		2,490		2,490		---		---
U. S. government agencies and corporations		358		---		358		---
State and political subdivisions		398		---		398		---
Corporate bonds – investment grade (2)		3,812		---		3,812		---
Total pension plan assets	$	16,605	$	12,037	$	4,568	$	---

Schedule of Expected Benefit Payments [Table Text Block]

2015			$	3,467
2016			$	1,161
2017			$	1,907
2018			$	1,002
2019			$	735
2020	-	2024	$	4,239