Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Plant, property and equipment	$ 469,247	$ 450,705
Total	469,247us-gaap_DeferredIncomeTaxLiabilities	450,705us-gaap_DeferredIncomeTaxLiabilities
Asset valuations	608,905ACU_DeferredTaxAssetsAssetValuations	508,686ACU_DeferredTaxAssetsAssetValuations
Contribution carryforward		110,700
Operating loss carryforwards and credits	138,090	2,205,244
Pension	166,625	178,908
Foreign tax credit	28,049	43,575
Other	734,993us-gaap_DeferredTaxAssetsOther	885,185us-gaap_DeferredTaxAssetsOther
Total	1,676,662us-gaap_DeferredTaxAssetsGross	3,932,298us-gaap_DeferredTaxAssetsGross
Net deferred income tax asset before valuation allowance	1,207,415ACU_DeferredTaxAssetsLiabilitiesGross	3,481,593ACU_DeferredTaxAssetsLiabilitiesGross
Valuation allowance	(138,090)	(2,205,244)
Net deferred income tax asset	$ 1,069,325us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 1,276,349us-gaap_DeferredTaxAssetsLiabilitiesNet

Deferred tax asset representing asset valuations.

No definition available.

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- Definition

Gross value of deferred tax asset attributable to deductible temporary differences and carryforwards, offset by deferred tax liability attributable to taxable temporary differences prior to valuation allowance.

+ References

No definition available.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Deferred Tax Liability

-URI http://asc.fasb.org/extlink&oid=6510232

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph b(2)

-Article 7

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible charitable contribution carryforwards.

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-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Deferred Tax Asset

-URI http://asc.fasb.org/extlink&oid=6510090

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- Definition

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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-Publisher FASB

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

+ References

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- Definition

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

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.

+ References

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