XML 55 R44.htm IDEA: XBRL DOCUMENT v2.4.0.8
Loans and Allowance for Loan Losses - Activity in Allowance for Loan Losses and the Recorded Investments in Loans (Detail) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Beginning balance $ 24,947,000 $ 29,689,000 $ 28,677,000 $ 36,532,000  
Provision for loan losses (1,700,000) (400,000) (4,700,000) (3,400,000)  
Charge-offs (85,000) (1,891,000) (2,881,000) (11,175,000)  
Recoveries 2,033,000 364,000 4,099,000 5,805,000  
Ending balance 25,195,000 27,762,000 25,195,000 27,762,000  
Ending balance: individually evaluated for impairment 15,063,000 15,803,000 15,063,000 15,803,000  
Ending balance: collectively evaluated for impairment 10,132,000 11,959,000 10,132,000 11,959,000  
Ending balance 1,075,487,000 1,035,288,000 1,075,487,000 1,035,288,000 1,041,189,000
Ending balance: individually evaluated for impairment 50,277,000 63,214,000 50,277,000 63,214,000  
Ending balance: collectively evaluated for impairment 1,025,210,000 972,074,000 1,025,210,000 972,074,000  
Commercial Loans [Member]
          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Beginning balance 22,382,000 26,471,000 26,043,000 33,431,000  
Provision for loan losses (1,730,000) (355,000) (4,375,000) (3,480,000)  
Charge-offs 0 (1,548,000) (2,774,000) (10,662,000)  
Recoveries 2,002,000 326,000 3,760,000 5,605,000  
Ending balance 22,654,000 24,894,000 22,654,000 24,894,000  
Ending balance: individually evaluated for impairment 13,860,000 15,498,000 13,860,000 15,498,000  
Ending balance: collectively evaluated for impairment 8,794,000 9,396,000 8,794,000 9,396,000  
Ending balance 1,007,763,000 957,411,000 1,007,763,000 957,411,000 968,506,000
Ending balance: individually evaluated for impairment 46,426,000 61,378,000 46,426,000 61,378,000  
Ending balance: collectively evaluated for impairment 961,337,000 896,033,000 961,337,000 896,033,000  
Retail Loans [Member]
          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Beginning balance 2,559,000 3,167,000 2,645,000 3,019,000  
Provision for loan losses (7,000) (35,000) (379,000) 121,000  
Charge-offs (85,000) (343,000) (107,000) (513,000)  
Recoveries 31,000 38,000 339,000 200,000  
Ending balance 2,498,000 2,827,000 2,498,000 2,827,000  
Ending balance: individually evaluated for impairment 1,203,000 305,000 1,203,000 305,000  
Ending balance: collectively evaluated for impairment 1,295,000 2,522,000 1,295,000 2,522,000  
Ending balance 67,724,000 77,877,000 67,724,000 77,877,000 72,683,000
Ending balance: individually evaluated for impairment 3,851,000 1,836,000 3,851,000 1,836,000  
Ending balance: collectively evaluated for impairment 63,873,000 76,041,000 63,873,000 76,041,000  
Unallocated [Member]
          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Beginning balance 6,000 51,000 (11,000) 82,000  
Provision for loan losses 37,000 (10,000) 54,000 (41,000)  
Charge-offs 0 0 0 0  
Recoveries 0 0 0 0  
Ending balance 43,000 41,000 43,000 41,000  
Ending balance: individually evaluated for impairment 0 0 0 0  
Ending balance: collectively evaluated for impairment 43,000 41,000 43,000 41,000  
Ending balance            
Ending balance: individually evaluated for impairment            
Ending balance: collectively evaluated for impairment