Note 15 - Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

	At and for the years ended December 31,
	2014			2013			2012
Change in benefit obligation
Benefit obligation, beginning of period	$	18,122		$	18,507		$	19,786
Interest cost		892			848			958
Net actuarial loss		4,110			80			668
Benefits paid		(2,686	)		(1,313	)		(2,905	)
Benefit obligation, end of period		20,438			18,122			18,507
Change in Pension Plan assets
Fair value of Pension Plan assets, beginning of period		16,798			14,540			13,663
Return on Pension Plan assets		1,717			1,678			2,182
Employer contribution		1,600			1,893			1,600
Benefits paid		(2,686	)		(1,313	)		(2,905	)
Fair value of Pension Plan assets, end of period		17,429			16,798			14,540
Underfunded status	$	(3,009	)	$	(1,324	)	$	(3,967	)
Net actuarial loss	$	(13,975	)	$	(11,235	)	$	(12,627	)
Income tax benefit		(4,891	)		(3,932	)		(4,419	)
Accumulated other comprehensive loss impact	$	(9,084	)	$	(7,303	)	$	(8,208	)

Schedule of Net Benefit Costs [Table Text Block]

	For the years ended December 31,
	2014			2013			2012
Interest cost	$	892		$	848		$	958
Expected return on plan assets		(1,076	)		(1,186	)		(1,133	)
Amortization of net actuarial loss		729			980			911
Net periodic pension expense	$	545		$	642		$	736

Schedule of Assumptions Used [Table Text Block]

	For the years ended December 31,
	2014			2013			2012
Weighted-average assumptions used in computing balance sheet liabilty:
Discount rate		4.16	%		5.04	%		4.19	%
Expected long-term rate of return on Pension Plan assets		6.30			8.00			8.00
Rate of increase in compensation levels		n/a			n/a			n/a
Weighted-average assumptions used in computing net periodic benefit expense:
Discount rate		5.04	%		4.19	%		5.02	%
Expected long-term rate of return on Pension Plan assets		6.30			8.00			8.00
Rate of increase in compensation levels		n/a			n/a			n/a

Schedule of Allocation of Plan Assets [Table Text Block]

	December 31,
	2014		2013
Cash and cash equivalents	$	902	$	4,440
U.S. government and agency securities		-		549
Municipal securities		-		470
Corporate bonds		-		3,398
Mutual funds		902		3,596
Corporate stocks		1,085		3,329
Exchange traded funds		14,351		287
Foreign equities		182		694
Accrued interest receivable		-		30
Other		7		5
Total Pension Plan assets	$	17,429	$	16,798

Schedule of Defined Benefit Pension Plan Assets Fair Value Measured on Recurring Basis [Table Text Block]

	December 31,
	2014		2013
Level 1	$	1,994	$	7,804
Level 2		15,435		8,994
Level 3		-		-
Total Pension Plan assets	$	17,429	$	16,798

Schedule of Expected Benefit Payments [Table Text Block]

For the years ended December 31,
2015	$	1,002
2016		1,017
2017		1,030
2018		1,069
2019		1,092
2020-2024		5,711