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Share-Based Compensation - Narrative (Details) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 15, 2021 | Dec. 09, 2020 | Jun. 20, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Weighted average fair value (in US$ per share) |  | $ 2.36 | $ 4.24 |  |  |
Proceeds from stock option exercises | $ 0 | $ 0 | $ 129,000 |  |  |
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | 200,000 | 900,000 |  |  |  |
Unrecognized compensation cost related to restricted stock | $ 600,000 | 2,000,000 |  |  |  |
2017 Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Shares authorized (shares) | 3,550,000 |  |  | 3,550,000 | 2,050,000 | 900,000
Share-based compensation, maximum number of shares per employee per calendar year | 250,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 1,581,299 |  |  |  |  |
2020 Plan [Member] |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Shares authorized (shares) | 300,000 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 99,537 |  |  |  |  |
Stock Options |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Estimated forfeiture rate | 4.80% |  |  |  |  |
Stock Options | General and Administrative Expense |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Compensation expense recognized | $ 600,000 | $ 700,000 | 700,000 |  |  |
NQOs |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share price (in US$ per share) | $ 4.69 | $ 12.69 |  |  |  |
Proceeds from stock option exercises | $ 0 | $ 0 | 100,000 |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 5 months 15 days |  |  |  |  |
PNQs | Farmer Bros. Co. Amended and Restated 2007 Long-term Incentive Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ 29.51 |  |  |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $ 2,300,000 | $ 700,000 | $ 400,000 |  |  |
Restricted stock granted, weighted average grant date fair value (in US$ per share) | $ 7.20 | $ 10.10 | $ 13.00 |  |  |
Unrecognized compensation cost related to restricted stock | $ 3,900,000 | $ 2,800,000 |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 1 year 2 months 19 days |  |  |  |  |
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted, Fair Value | $ 4,200,000 |  |  |  |  |
Restricted Stock Units (RSUs) [Member] | General and Administrative Expense |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Compensation expense recognized | 2,100,000 | 2,000,000 | $ 1,100,000 |  |  |
Cash-Settled Restricted Stock Units |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $ 400,000 |  |  |  |  |
Restricted stock granted (in shares) | 85,851 |  |  |  |  |
Restricted stock granted, weighted average grant date fair value (in US$ per share) | $ 8.91 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 52,583 |  |  |  |  |
Employee Benefits and Share-based Compensation | $ 100,000 | 400,000 |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 1 year 9 months 3 days |  |  |  |  |
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted, Fair Value | $ 800,000 |  |  |  |  |
Performance Cash Awards |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period | 3 years |  |  |  |  |
Performance Cash Awards | Restricted Stock |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Compensation expense recognized |  | 72,300 |  |  |  |
Performance-Based Restricted Stock Units |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $ 3,200 | 3,000 | 0 |  |  |
Compensation expense recognized |  | $ 100,000 | $ 200,000 |  |  |
Restricted stock granted (in shares) | 158,659 |  |  |  |  |
Restricted stock granted, weighted average grant date fair value (in US$ per share) | $ 8.91 | $ 4.10 | $ 14.46 |  |  |
Unrecognized compensation cost related to restricted stock | $ 1,700,000 | $ 1,000,000 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 381 |  |  |  |  |
Employee Benefits and Share-based Compensation | $ 600,000 |  |  |  |  |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition | 1 year 11 months 1 day |  |  |  |  |
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Granted, Fair Value | $ 1,400,000 |  |  |  |  |
Vested | NQOs |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Number of options granted (shares) | 0 |  |  |  |  |
Weighted average purchase price (in US$ per share) | $ 0 |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ 19.05 |  |  |  |  |
Vested | Restricted Stock |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 283,016 |  |  |  |  |
Vested | Restricted Stock | Omnibus Plan |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Restricted stock granted (in shares) | 551,967 |  |  |  |  |
Restricted stock granted, weighted average grant date fair value (in US$ per share) | $ 7.20 |  |  |  |  |
Minimum | Performance Cash Awards |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 0.00% |  |  |  |  |
Maximum | Performance Cash Awards |  |  |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage | 200.00% |  |  |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585 + Details
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- Definition Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(02) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The highest quantity of shares an employee can purchase under the plan per period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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