Provision for Income Taxes - Additional Information (Detail) - USD ($) |
Sep. 30, 2020 |
Sep. 30, 2019 |
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| Income Tax Contingency [Line Items] | ||
| Deferred tax assets, gross | $ 3,772,000 | $ 3,574,000 |
| Fuel tax credits | 300,000 | 300,000 |
| Goodwill expected to be deductible to tax purposes | 22,600,000 | 19,000,000.0 |
| Unrecognized tax benefits | 0 | 0 |
| State | ||
| Income Tax Contingency [Line Items] | ||
| Operating loss carryforwards | $ 15,300,000 | $ 31,600,000 |
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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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