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Employee Benefit Plans (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2012 | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013
401 (k) Plan [Abstrract] |  |  |  |
Defined Contribution Plan Cost Recognized - IES | $ 0 |  |  |
Executive Saving Plan [Abstract] |  |  |  |
Maximum percentage of salary permitted for deferral |  | 75.00% |  |
Post Retirement Benefit Plan [Abstract] |  |  |  |
Defined Benefit Plan, Percentage Vest After Ten Years Of Service |  | 50.00% |  |
Denfied Benefits Plan, Annual Percentage Vested |  | 10.00% |  |
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation |  | $ 853 |  | $ 828
MultiemployerPlansAbstract |  |  |  |
Percentage of Plan Funded |  |  | 85.30% |

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- Definition Arrangment made with employees to defer a maximum percentage of their base salary and/or bonus for a Plan Year. + References No definition available. + Details
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- Definition Maximum percentage of benefits vest after ten years of employment service. + References No definition available. + Details
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- Definition No authoritative reference available. + References No definition available. + Details
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- Definition Annual percentage increase in defined benefit vest. + References No definition available. + Details
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- Details
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- Definition Funded percenatge of multiemployer pension plan for collective barganning employees. + References No definition available. + Details
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- Details
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- Details
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- Definition If aggregate disclosures are presented, the aggregate benefit obligation for plans with benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 + Details
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- Details
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