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Fair Value of Financial Instruments - Summary of Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets |  |
Cash and due from banks | $ 47,612 | $ 48,650
Investment securities, held to maturity | 180,291 | 187,629
Loans held for sale | 3,168 | 7,917
Loans excluding loan level hedges, net | 1,710,824 | 1,739,713
Stock in FHLB and FRB | 13,823 | 13,823
Interest receivable | 10,476 | 10,535
Liabilities |  |
Non-interest bearing deposits | 343,025 | 335,955
Subordinated debentures | 32,836 | 32,797
Interest payable | 580 | 507
Carrying Amount [Member] |  |
Assets |  |
Cash and due from banks | 47,612 | 48,650
Investment securities, held to maturity | 180,291 | 187,629
Loans held for sale | 3,168 | 7,917
Loans excluding loan level hedges, net | 1,594,999 | 1,619,125
Stock in FHLB and FRB | 13,823 | 13,823
Interest receivable | 10,476 | 10,535
Liabilities |  |
Non-interest bearing deposits | 343,025 | 335,955
Interest-bearing deposits | 1,535,454 | 1,544,198
Borrowings | 430,507 | 449,347
Subordinated debentures | 32,836 | 32,797
Interest payable | 580 | 507
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Assets |  |
Cash and due from banks | 47,612 | 48,650
Liabilities |  |
Non-interest bearing deposits | 343,025 | 335,955
Significant Other Observable Inputs (Level 2) [Member] |  |
Assets |  |
Investment securities, held to maturity | 188,093 | 193,703
Stock in FHLB and FRB | 13,823 | 13,823
Interest receivable | 10,476 | 10,535
Liabilities |  |
Interest-bearing deposits | 1,483,711 | 1,461,314
Borrowings | 426,966 | 441,547
Subordinated debentures | 33,003 | 32,996
Interest payable | 580 | 507
Significant Unobservable Inputs (Level 3) [Member] |  |
Assets |  |
Loans held for sale | 3,168 | 7,917
Loans excluding loan level hedges, net | $ 1,584,414 | $ 1,703,506

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- Definition For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks. + 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1, 2, 3 -Article 9 + Details
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- Definition Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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