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Estimated Fair Values of Financial Instruments (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Financial Assets: |  |
Cash and cash equivalents | $ 66,982 | $ 61,818
Investment securities available for sale | 393,576 | 380,188
Loans and leases, net | 831,835 | 873,309
Collateral dependent impaired loans | 14,032 | 27,449
Loans held-for-sale | 523 | 210
Cash surrender value of life insurance policies | 38,940 | 38,007
Other investments | 5,932 | 6,370
Investment in Limited Partnership | 9,826 | 10,316
Accrued interest receivable | 4,935 | 5,095
Financial Liabilities: |  |
Noninterest-bearing | 357,540 | 352,597
Interest-bearing | 797,833 | 821,911
Fed Funds Purchased and Repurchase Agreements | 1,963 | 1,419
Short-term borrowings | 0 | 36,650
Long-term borrowings | 0 | 5,038
Subordinated debentures | 19,304 | 12,141
Limited partnership capital commitment | 951 | 962
Accrued Interest Payable | 200 | 304
Commitments to extend credit |  |
Off-balance-sheet financial instruments: |  |
Notional Amount | 387,241 | 225,400
Standby Letters of Credit |  |
Off-balance-sheet financial instruments: |  |
Notional Amount | 8,316 | 6,690
Commercial lines of credit |  |
Off-balance-sheet financial instruments: |  |
Notional Amount | 8,533 | 8,539
Fair Value, Inputs, Level 1 |  |
Financial Assets: |  |
Cash and cash equivalents | 66,982 | 61,818
Investment securities available for sale | 2,234 | 1,809
Loans and leases, net | 0 | 0
Collateral dependent impaired loans | 0 | 0
Loans held-for-sale | 523 | 210
Cash surrender value of life insurance policies | 0 | 0
Other investments | 0 | 0
Investment in Limited Partnership | 0 | 0
Accrued interest receivable | 0 | 0
Financial Liabilities: |  |
Noninterest-bearing | 357,540 | 352,597
Interest-bearing | 0 | 0
Fed Funds Purchased and Repurchase Agreements | 0 | 0
Short-term borrowings | 0 | 0
Long-term borrowings | 0 | 0
Subordinated debentures | 0 | 0
Limited partnership capital commitment | 0 | 0
Accrued Interest Payable | 0 | 0
Fair Value, Inputs, Level 2 |  |
Financial Assets: |  |
Cash and cash equivalents | 0 | 0
Investment securities available for sale | 391,342 | 378,379
Loans and leases, net | 831,835 | 873,309
Collateral dependent impaired loans | 14,032 | 27,449
Loans held-for-sale | 0 | 0
Cash surrender value of life insurance policies | 38,940 | 38,007
Other investments | 5,932 | 6,370
Investment in Limited Partnership | 9,826 | 10,316
Accrued interest receivable | 4,935 | 5,095
Financial Liabilities: |  |
Noninterest-bearing | 0 | 0
Interest-bearing | 797,833 | 821,911
Fed Funds Purchased and Repurchase Agreements | 1,963 | 1,419
Short-term borrowings | 0 | 36,650
Long-term borrowings | 0 | 5,038
Subordinated debentures | 19,304 | 12,141
Limited partnership capital commitment | 951 | 962
Accrued Interest Payable | 200 | 304
Fair Value, Inputs, Level 3 |  |
Financial Assets: |  |
Cash and cash equivalents | 0 | 0
Investment securities available for sale | 0 | 0
Loans and leases, net | 0 | 0
Collateral dependent impaired loans | 0 | 0
Loans held-for-sale | 0 | 0
Cash surrender value of life insurance policies | 0 | 0
Other investments | 0 | 0
Investment in Limited Partnership | 0 | 0
Accrued interest receivable | 0 | 0
Financial Liabilities: |  |
Noninterest-bearing | 0 | 0
Interest-bearing | 0 | 0
Fed Funds Purchased and Repurchase Agreements | 0 | 0
Short-term borrowings | 0 | 0
Long-term borrowings | 0 | 0
Subordinated debentures | 0 | 0
Limited partnership capital commitment | 0 | 0
Accrued Interest Payable | 0 | 0
Carrying Amount |  |
Financial Assets: |  |
Cash and cash equivalents | 66,982 | 61,818
Investment securities available for sale | 393,576 | 380,188
Loans and leases, net | 785,219 | 839,629
Collateral dependent impaired loans | 14,032 | 27,449
Loans held-for-sale | 523 | 210
Cash surrender value of life insurance policies | 38,940 | 38,007
Other investments | 5,932 | 6,370
Investment in Limited Partnership | 9,826 | 10,316
Accrued interest receivable | 4,935 | 5,095
Financial Liabilities: |  |
Noninterest-bearing | 357,540 | 352,597
Interest-bearing | 797,476 | 821,437
Fed Funds Purchased and Repurchase Agreements | 1,963 | 1,419
Short-term borrowings | 0 | 36,650
Long-term borrowings | 0 | 5,000
Subordinated debentures | 30,928 | 30,928
Limited partnership capital commitment | 951 | 962
Accrued Interest Payable | $ 200 | $ 304

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Surrender Value -URI http://asc.fasb.org/extlink&oid=6507153 + Details
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- Definition Fair value portion of arrangements with third parties, including, but not limited to, operating lease arrangement and arrangement in which the entity has agreed to expend funds to procure goods or services, or has agreed to commit resources to supply goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.25) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 25 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 17 -Article 9 + Details
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- Definition Fair value portion of short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price. + References No definition available. + Details
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- Definition Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables. + References No definition available. + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
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