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Reference 1: 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=35743120&loc=d3e1928-114920

Reference 2: 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=29635418&loc=d3e12355-114930

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PENSION PLAN - Plan Asset FV and Est. Future Contrib. (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	$ 4,471	$ 4,071	$ 3,366
Best estimate of the plan contribution for next fiscal year
Contributions for the period of 01/01/14 through 12/31/14	338
Estimated future benefit payments reflecting expected future service
2015	221
2016	229
2017	252
2018	258
2019	277
2020 through 2024	1,718
Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	3,800	3,582
Level II
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	671	489
Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	4,471	4,071
Cash \| Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	402	285
Cash \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	402	285
Fixed income \| Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	1,207	1,140
Fixed income \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	1,207	1,140
Alternative investments \| Level II
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	671	489
Alternative investments \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	671	489
Domestic equities \| Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	1,431	1,343
Domestic equities \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	1,431	1,343
Foreign equities \| Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	715	692
Foreign equities \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	715	692
Real estate inv. Trusts (REITs) \| Level I
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	45	122
Real estate inv. Trusts (REITs) \| Total
Plan's assets at fair value by level, within the fair value hierarchy
Total assets at fair value	$ 45	$ 122