XML 39 R30.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Segments (Details) - Schedule of financial data for operating segments - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Cost of goods sold: |  |  |  |
Cost of goods sold | $ 356,716 | $ 308,955 | $ 1,013,406 | $ 796,729
Gross profit (loss): |  |  |  |
Gross profit | (19,839) | (3,399) | (6,222) | 25,671
Pekin Campus Production [Member] |  |  |  |
Interest expense, net of capitalized interest: |  |  |  |
Interest expense, net of capitalized interest | (48) | 176 | (81) | 767
Marketing and Distribution [Member] |  |  |  |
Cost of goods sold: |  |  |  |
Cost of goods sold | 55,159 | 105,902 | 173,670 | 245,606
Gross profit (loss): |  |  |  |
Gross profit | 3,532 | 9,409 | 9,411 | 18,862
Income (loss) before provision for income taxes: |  |  |  |
Income before provision for income taxes | 1,622 | 7,517 | 3,444 | 12,929
Interest expense, net of capitalized interest: |  |  |  |
Interest expense, net of capitalized interest | 487 | 295 | 1,060 | 721
Other production [Member] |  |  |  |
Cost of goods sold: |  |  |  |
Cost of goods sold | 91,663 | 35,613 | 261,514 | 87,055
Gross profit (loss): |  |  |  |
Gross profit | (2,729) | (3,297) | (3,269) | (3,587)
Income (loss) before provision for income taxes: |  |  |  |
Income before provision for income taxes | (4,958) | (4,856) | 1,404 | (12,467)
Depreciation and amortization of intangibles: |  |  |  |
Depreciation and amortization of intangibles | 1,273 | 1,468 | 4,095 | 4,433
Interest expense, net of capitalized interest: |  |  |  |
Interest expense, net of capitalized interest | (74) |  | (128) | 182
Corporate and other [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 4,159 |  | 12,064 |
Gross profit (loss): |  |  |  |
Gross profit | 1,234 |  | 3,069 |
Income (loss) before provision for income taxes: |  |  |  |
Income before provision for income taxes | (2,038) | 6,037 | (7,121) | 567
Depreciation and amortization of intangibles: |  |  |  |
Depreciation and amortization of intangibles | 229 | 11 | 646 | 44
Interest expense, net of capitalized interest: |  |  |  |
Interest expense, net of capitalized interest | (25) | (42) | 8 | 1,689
Intersegment Eliminations [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | (3,456) | (2,967) | (10,231) | (9,092)
Cost of goods sold: |  |  |  |
Cost of goods sold | (970) | (2,281) | (3,285) | (4,904)
Gross profit (loss): |  |  |  |
Gross profit | (2,486) | (686) | (6,946) | (4,188)
Pekin Campus Production [Member] |  |  |  |
Cost of goods sold: |  |  |  |
Cost of goods sold | 207,939 | 169,721 | 572,512 | 468,972
Gross profit (loss): |  |  |  |
Gross profit | (19,390) | (8,825) | (8,487) | 14,584
Income (loss) before provision for income taxes: |  |  |  |
Income before provision for income taxes | (22,664) | (11,830) | (6,252) | 8,907
Depreciation and amortization of intangibles: |  |  |  |
Depreciation and amortization of intangibles | 4,758 | 4,372 | 14,381 | 13,043
Corporate and other [Member] |  |  |  |
Cost of goods sold: |  |  |  |
Cost of goods sold | 2,925 |  | 8,995 |
Income (loss) before provision for income taxes [Member] |  |  |  |
Income (loss) before provision for income taxes: |  |  |  |
Income before provision for income taxes | (28,038) | (3,132) | (8,525) | 9,936
Depreciation and amortization of intangibles [Member] |  |  |  |
Depreciation and amortization of intangibles: |  |  |  |
Depreciation and amortization of intangibles | 6,260 | 5,851 | 19,122 | 17,520
Total [Member] |  |  |  |
Interest expense, net of capitalized interest: |  |  |  |
Interest expense, net of capitalized interest | 340 | 429 | 859 | 3,359
Alcohol sales [Member] | Pekin Campus Production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 133,680 | 114,587 | 393,498 | 341,967
Alcohol sales [Member] | Other production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 64,492 | 25,190 | 191,483 | 63,311
Essential Ingredient Sales [Member] | Pekin Campus Production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 54,537 | 46,016 | 169,670 | 140,670
Essential Ingredient Sales [Member] | Other production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 24,439 | 6,867 | 66,748 | 19,261
Intersegment Sales [Member] | Pekin Campus Production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 332 | 293 | 857 | 919
Intersegment Sales [Member] | Marketing and Distribution [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 3,121 | 2,415 | 9,360 | 7,277
Intersegment Sales [Member] | Other production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 3 | 259 | 14 | 896
Total Pekin Campus Sales [Member] | Pekin Campus Production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 188,549 | 160,896 | 564,025 | 483,556
Alcohol sales, gross [Member] | Marketing and Distribution [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 55,262 | 112,391 | 172,746 | 255,702
Alcohol sales, net [Member] | Marketing and Distribution [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 308 | 505 | 975 | 1,489
Total Marketing and Distribution Sales [Member] | Marketing and Distribution [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 58,691 | 115,311 | 183,081 | 264,468
Total Other production Sales [Member] | Other production [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | 88,934 | 32,316 | 258,245 | 83,468
Net sales as reported [Member] |  |  |  |
Pekin Campus, recorded as gross: |  |  |  |
Net sales | $ 336,877 | $ 305,556 | $ 1,007,184 | $ 822,400

X
- References No definition available. + Details
Name: | alto_CostOfGoodsSoldAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | alto_DepreciationAndAmortizationOfIntangiblesAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | alto_GrossProfitLossAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | alto_IncomeLossBeforeProvisionForIncomeTaxesAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income (loss) before benefit for income taxes. + References No definition available. + Details
Name: | alto_IncomelossBeforeBenefitForIncomeTaxes
Namespace Prefix: | alto_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | alto_InterestExpenseNetOfCapitalizedInterestAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Interest expenses. + References No definition available. + Details
Name: | alto_InterestExpenses
Namespace Prefix: | alto_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | alto_PekinCampusRecordedAsGrossAbstract
Namespace Prefix: | alto_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a),(d)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 17: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -URI https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756 Reference 18: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
Name: | us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_ProductionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_MarketingAndDistributionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_OtherProductionIncomeTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_IntersegmentEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_PekinCampusMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_CorporateActivitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_IncomelossBeforeProvisionForIncomeTaxesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=alto_DepreciationAndAmortizationOfIntangiblesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_AssetsTotalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_EthanolAlcoholSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_EssentialIngredientSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_IntersegmentSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_TotalPekinCampusSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_AlcoholSalesGrossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_AlcoholSalesNetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_TotalMarketingAndDistributionSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_TotalOtherProductionSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsegmentsAxis=alto_NetSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |