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Related Party Transactions (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($)
Settlement of Short Swing Profit Claim [Abstract] |
Short swing profit settlement | $ 20,000

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

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- Definition Amount of short swing profit settlement from any purchase or sale (or sale and purchase) of the company's equity securities. + References No definition available. + Details
Name: | usph_ShortSwingProfitSettlement
Namespace Prefix: | usph_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration