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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified		12 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Internal Revenue Service (IRS)	Sep. 30, 2014 Federal	Dec. 31, 2013 Federal and State	Dec. 31, 2013 State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net Operating Loss carryforward assets		$ 2.1		$ 19.0
NOL carryforward assets expiration date		2029			2019
Alternative Minimum tax credit carryforwards	$ 2.1
Tax examination description			The Company remains subject to examination by Federal, Maine, Massachusetts, and New Hampshire tax authorities for the tax periods ended December 31, 2011; December 31, 2012; and December 31, 2013.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319



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-Name Accounting Standards Codification

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- Definition

A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

+ References

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Operating Loss Carryforward assets net of taxes.

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