Amount of the employer's best estimate of contributions expected to be paid to the plan in the next twelve months.

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- Definition

Represents the number of underfunded pension plans.

+ References

No definition available.

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- Definition

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503844

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Projected Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6522206

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Postretirement Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503904

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- Definition

Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=64937038&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6749337

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Plan Assets
-URI http://asc.fasb.org/extlink&oid=6520858

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

+ Details

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

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Note 8 - Retirement Plans (Details Textual) $ in Thousands		12 Months Ended
Note 8 - Retirement Plans (Details Textual) $ in Thousands	Feb. 28, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Benefit Plan, Fair Value of Plan Assets		$ 80,929	$ 69,246	$ 66,813
Defined Benefit Plan, Benefit Obligation		114,976	103,199	$ 108,006
Defined Benefit Plan, Accumulated Benefit Obligation		115,000	103,200
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year		3,000
Profit Sharing Contribution [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		3,400	1,600
Capital Accumulation Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount		$ 8,800	$ 1,800
Capital Accumulation Plan [Member] \| Subsequent Event [Member]
Defined Contribution Plan, Expected Contributions In Next Twelve Months	$ 8,600
Capital Accumulation Plan [Member] \| First 3% of Each Employee's Salary Deferral [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		100.00%
Capital Accumulation Plan [Member] \| Matched by the Company at the Rate of 100% [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		3.00%
Capital Accumulation Plan [Member] \| Next 2% of Each Employee's Salary Deferral [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		50.00%
Capital Accumulation Plan [Member] \| Matched by the Company at the Rate of 50% [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		2.00%
Acquired Pension Plans [Member]
Number of Underfunded Pension Plans		2
Defined Benefit Plan, Fair Value of Plan Assets		$ 5,800
Defined Benefit Plan, Benefit Obligation		$ 8,300