XML 79 R26.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Allowance for Loan Losses (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2015
Allowance for Loan Losses |
Schedule of changes in the allowance for loan losses by segment of loans based on method of impairment | Changes in the allowance for loan losses by segment of loans based on method of impairment for three months ending March 31, 2015, were as follows:
Allowance for loan losses: |  |  |  | Real Estate |  | Real Estate |  | Real Estate |  |  |  |  |  |
|  | Commercial |  | Commercial 1 |  | Construction |  | Residential |  | Consumer |  | Unallocated |  | Total
Three months ended March 31, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 1,644 |  | $ | 12,577 |  | $ | 1,475 |  | $ | 1,981 |  | $ | 1,454 |  | $ | 2,506 |  | $ | 21,637
Charge-offs |  |  | 32 |  |  | 495 |  |  | 1 |  |  | 618 |  |  | 118 |  |  | - |  |  | 1,264
Recoveries |  |  | 141 |  |  | 330 |  |  | 5 |  |  | 224 |  |  | 108 |  |  | - |  |  | 808
(Release) provision |  |  | (241) |  |  | 1,621 |  |  | (207) |  |  | 330 |  |  | (27) |  |  | (1,476) |  |  | -
Ending balance |  | $ | 1,512 |  | $ | 14,033 |  | $ | 1,272 |  | $ | 1,917 |  | $ | 1,417 |  | $ | 1,030 |  | $ | 21,181
Ending balance: Individually evaluated for impairment |  | $ | - |  | $ | 1,580 |  | $ | 60 |  | $ | 144 |  | $ | - |  | $ | - |  | $ | 1,784
Ending balance: Collectively evaluated for impairment |  | $ | 1,512 |  | $ | 12,453 |  | $ | 1,212 |  | $ | 1,773 |  | $ | 1,417 |  | $ | 1,030 |  | $ | 19,397
Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending balance |  | $ | 122,892 |  | $ | 608,267 |  | $ | 39,430 |  | $ | 363,967 |  | $ | 3,495 |  | $ | 13,018 |  | $ | 1,151,069
Ending balance: Individually evaluated for impairment |  | $ | 1,897 |  | $ | 11,867 |  | $ | 1,821 |  | $ | 16,341 |  | $ | - |  | $ | - |  | $ | 31,926
Ending balance: Collectively evaluated for impairment |  | $ | 120,995 |  | $ | 596,400 |  | $ | 37,609 |  | $ | 347,626 |  | $ | 3,495 |  | $ | 13,018 |  | $ | 1,119,143
1 As of March 31, 2015, this segment consisted of performing loans that included a higher risk pool of loans rated as substandard that totaled $5.4 million. The amount of general allocation that was estimated for that portion of these performing substandard rated loans was $1.1 million at March 31, 2015. Changes in the allowance for loan losses by segment of loans based on method of impairment for three months ending March 31, 2014, were as follows:
Allowance for loan losses: |  |  |  | Real Estate |  | Real Estate |  | Real Estate |  |  |  |  |  |
|  | Commercial |  | Commercial 1 |  | Construction |  | Residential |  | Consumer |  | Unallocated |  | Total
Three months ended March 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 2,250 |  | $ | 16,763 |  | $ | 1,980 |  | $ | 2,837 |  | $ | 1,439 |  | $ | 2,012 |  | $ | 27,281
Charge-offs |  |  | 4 |  |  | 329 |  |  | 68 |  |  | 849 |  |  | 110 |  |  | - |  |  | 1,360
Recoveries |  |  | 15 |  |  | 141 |  |  | 37 |  |  | 250 |  |  | 112 |  |  | - |  |  | 555
(Release) provision |  |  | 65 |  |  | (2,509) |  |  | 49 |  |  | 30 |  |  | 54 |  |  | 1,311 |  |  | (1,000)
Ending balance |  | $ | 2,326 |  | $ | 14,066 |  | $ | 1,998 |  | $ | 2,268 |  | $ | 1,495 |  | $ | 3,323 |  | $ | 25,476
Ending balance: Individually evaluated for impairment |  | $ | - |  | $ | 673 |  | $ | 194 |  | $ | 380 |  | $ | - |  | $ | - |  | $ | 1,247
Ending balance: Collectively evaluated for impairment |  | $ | 2,326 |  | $ | 13,393 |  | $ | 1,804 |  | $ | 1,888 |  | $ | 1,495 |  | $ | 3,323 |  | $ | 24,229
Loans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending balance |  | $ | 107,548 |  | $ | 579,297 |  | $ | 32,016 |  | $ | 375,781 |  | $ | 2,837 |  | $ | 13,758 |  | $ | 1,111,237
Ending balance: Individually evaluated for impairment |  | $ | 24 |  | $ | 22,790 |  | $ | 4,679 |  | $ | 16,705 |  | $ | - |  | $ | - |  | $ | 44,198
Ending balance: Collectively evaluated for impairment |  | $ | 107,524 |  | $ | 556,507 |  | $ | 27,337 |  | $ | 359,076 |  | $ | 2,837 |  | $ | 13,758 |  | $ | 1,067,039
1 As of March 31, 2014, this segment consisted of performing loans that included a higher risk pool of loans rated as substandard that totaled $5.6 million. The amount of general allocation that was estimated for that portion of these performing substandard rated loans was $412,000 at March 31, 2014.

X
- Details
Name: | osbc_AllowanceForLoanLossesDisclosureAbstract
Namespace Prefix: | osbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration