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Subsequent Events (Details Narrative) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Jun. 04, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Subsequent Event [Line Items] |  |  |
Sale of stock |  |  | 2,696,000
Gross proceeds from issuance of common stock |  | $ 80 | $ 23,204
Transaction costs |  |  | $ 1,900
Equity Distribution Agreement [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Sale of stock |  | 14,210 |
Gross proceeds from issuance of common stock | $ 120,000 |  |
At-the-Market Facility [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Additional aggregate offering price | $ 171,500 |  |

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- Definition Additional aggregate offering price. + References No definition available. + Details
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Namespace Prefix: | phun_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
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- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |