RETIREMENT PLANS: (Details 3)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Principal assumptions used (benefit obligation):
Discount rate (percent)	3.95%	4.95%
Rate of increase in compensation levels (percent)	3.00%	3.50%
Principal assumptions used (net periodic benefit):
Discount rate	4.95%	4.05%
Rate of increase in compensation levels	3.50%	3.50%
Expected long-term rate of return on plan assets (percent)	6.00%	6.00%

The interest rate used to adjust for the time value of money for the plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

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Expected rate of compensation increases (for pay-related plans).

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

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The interest rate used to adjust for the time value of money.

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An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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Expected rate of compensation increases (for pay-related plans).

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