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Shareholder Fees (Vanguard Pennsylvania Long-Term Tax-Exempt Fund Retail)
Vanguard Pennsylvania Long-Term Tax-Exempt Fund
Vanguard Pennsylvania Long-Term Tax-Exempt Fund - Investor Shares
12/1/2013 - 11/30/2014
USD ($)
Vanguard Pennsylvania Long-Term Tax-Exempt Fund
Vanguard Pennsylvania Long-Term Tax-Exempt Fund - Admiral Shares
12/1/2013 - 11/30/2014
USD ($)
Shareholder Fees (fees paid directly from your investment]    
Sales charge (load) imposed on purchases none none
Purchase Fee none none
Sales charge (load) imposed on reinvested dividends none none
Redemption Fee none none
Account Service Fee (for certain fund account balances below $10,000) 20rr_MaximumAccountFee
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/ rr_ProspectusShareClassAxis
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20rr_MaximumAccountFee
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= vanguard_C000007977Member