Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669646-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580

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Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Section 45
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Statement of Stockholders Equity (Parentheticals) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Additional Paid-in Capital [Member]
Cash dividends declared per share (in dollars per share)	$ 0.315	$ 0.285
Cash flow hedges, taxes
Pensions, taxes
Cash flow hedges, taxes
Pension, Taxes
Retained Earnings [Member]
Cash flow hedges, taxes		$ 21,000
Pensions, taxes	$ (339,000)	1,546,000
Cash flow hedges, taxes		(21,000)
Pension, Taxes	$ 339,000	$ (1,546,000)
Common Stock [Member]
Cash flow hedges, taxes
Pensions, taxes
Cash flow hedges, taxes
Pension, Taxes
AOCI Attributable to Parent [Member]
Cash flow hedges, taxes	$ (20,000)
Pensions, taxes
Cash flow hedges, taxes	$ 20,000
Pension, Taxes
Cash flow hedges, taxes
Pensions, taxes
Cash flow hedges, taxes
Pension, Taxes