$OSBC
Old Second Bancorp Inc Stock $osbc

$osbc Overview Financials Valuation SEC Filings Company Website

2014 Q1 Form 10-Q Financial Statement

#000110465914037972 Filed on May 13, 2014

Income Statement

Concept	2014 Q1	2013 Q4	2013 Q1
Revenue	$16.70M		$17.49M
YoY Change	-4.49%		-10.08%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$644.0K	$1.170M	$746.0K
YoY Change	-13.67%	-7.14%	-6.87%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$3.109M		$3.588M
YoY Change	-13.35%		-17.44%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$3.400M	-$30.00K	$5.471M
YoY Change	-37.85%	-101.97%	-284.33%
Income Tax	$1.198M	-$250.0K	$0.00
% Of Pretax Income	35.24%		0.0%
Net Earnings	$2.202M	$210.0K	$5.471M
YoY Change	-59.75%	-86.18%	-284.33%
Net Earnings / Revenue	13.18%		31.28%
Basic Earnings Per Share	$0.04		$0.30
Diluted Earnings Per Share	$0.04	$15.09K	$0.30
COMMON SHARES
Basic Shares Outstanding	13.92M shares	13.92M shares	14.08M shares
Diluted Shares Outstanding	14.08M shares		14.16M shares

Balance Sheet

Concept	2014 Q1	2013 Q4	2013 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$45.72M	$46.01M	$47.36M
YoY Change	-3.46%	-2.12%	-4.96%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$74.50M	$75.30M
YoY Change		8266.67%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.059B	$2.004B	$1.954B
YoY Change	5.39%	-2.04%	-1.39%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$43.20M	$27.60M	$20.80M
YoY Change	107.69%	-76.59%	23.81%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$43.20M	$27.60M	$20.80M
YoY Change	107.69%	-76.59%	23.81%
LONG-TERM LIABILITIES
Long-Term Debt	$103.9M	$103.9M	$103.9M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$38.60M	$42.80M	$35.30M
YoY Change	9.35%	24.78%	33.71%
Total Long-Term Liabilities	$142.5M	$146.7M	$139.2M
YoY Change	2.37%	6.15%	6.83%
TOTAL LIABILITIES
Total Short-Term Liabilities	$43.20M	$27.60M	$20.80M
Total Long-Term Liabilities	$142.5M	$146.7M	$139.2M
Total Liabilities	$1.910B	$1.856B	$1.878B
YoY Change	1.69%	-5.92%	-1.71%
SHAREHOLDERS EQUITY
Retained Earnings	$94.69M	$92.55M	$16.75M
YoY Change	465.43%	668.17%	29.66%
Common Stock	$18.84M	$18.83M	$18.78M
YoY Change	0.32%	0.54%	0.27%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$95.85M	$95.80M	$95.71M
YoY Change	0.15%	0.89%	0.79%
Treasury Stock Shares	4.922M shares	4.913M shares	4.897M shares
Shareholders Equity	$149.5M	$147.7M	$75.85M
YoY Change
Total Liabilities & Shareholders Equity	$2.059B	$2.004B	$1.954B
YoY Change	5.39%	-2.04%	-1.39%

Cashflow Statement

Concept	2014 Q1	2013 Q4	2013 Q1
OPERATING ACTIVITIES
Net Income	$2.202M	$210.0K	$5.471M
YoY Change	-59.75%	-86.18%	-284.33%
Depreciation, Depletion And Amortization	$644.0K	$1.170M	$746.0K
YoY Change	-13.67%	-7.14%	-6.87%
Cash From Operating Activities	-$4.940M	$15.54M	$2.170M
YoY Change	-327.65%	6.29%	-80.85%
INVESTING ACTIVITIES
Capital Expenditures	$355.0K	-$260.0K	$1.123M
YoY Change	-68.39%	-61.76%	629.22%
Acquisitions
YoY Change
Other Investing Activities	-$45.10M	-$8.540M	$47.79M
YoY Change	-194.37%	-90.93%	-295.54%
Cash From Investing Activities	-$45.45M	-$8.800M	$46.67M
YoY Change	-197.39%	-90.72%	-289.79%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$46.00K		$185.0K
YoY Change	-75.14%		193.65%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	57.76M	-39.15M	-96.22M
YoY Change	-160.03%	-128.7%	-347.16%
NET CHANGE
Cash From Operating Activities	-4.940M	15.54M	2.170M
Cash From Investing Activities	-45.45M	-8.800M	46.67M
Cash From Financing Activities	57.76M	-39.15M	-96.22M
Net Change In Cash	7.370M	-32.41M	-47.38M
YoY Change	-115.56%	-157.61%	-284.57%
FREE CASH FLOW
Cash From Operating Activities	-$4.940M	$15.54M	$2.170M
Capital Expenditures	$355.0K	-$260.0K	$1.123M
Free Cash Flow	-$5.295M	$15.80M	$1.047M
YoY Change	-605.73%	3.27%	-90.63%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2013	us-gaap	Held To Maturity Securities Unrecognized Holding Losses HeldToMaturitySecuritiesUnrecognizedHoldingLosses	2931000	USD
CY2014Q1	us-gaap	Held To Maturity Securities Unrecognized Holding Losses HeldToMaturitySecuritiesUnrecognizedHoldingLosses	2347000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	254328000	USD
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CY2014Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	10708000	USD
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CY2014Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	32287000	USD
CY2014Q1	osbc	Available For Sale Debt Maturities Before Securities Without Single Maturity Date Amortized Cost Basis AvailableForSaleDebtMaturitiesBeforeSecuritiesWithoutSingleMaturityDateAmortizedCostBasis	61115000	USD
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CY2014Q1	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	1360000	USD
CY2013Q1	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	4060000	USD
CY2014Q1	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	555000	USD
CY2013Q1	us-gaap	Real Estate Owned Valuation Allowance Provision RealEstateOwnedValuationAllowanceProvision	2134000	USD
CY2014Q1	us-gaap	Real Estate Owned Valuation Allowance Provision RealEstateOwnedValuationAllowanceProvision	436000	USD
CY2013Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	22284000	USD
CY2014Q1	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	19484000	USD
CY2014Q1	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	4800000	USD
CY2013Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	376286000	USD
CY2014Q1	dei	Entity Registrant Name EntityRegistrantName	OLD SECOND BANCORP INC
CY2014Q1	dei	Entity Central Index Key EntityCentralIndexKey	0000357173
CY2014Q1	dei	Document Type DocumentType	10-Q
CY2014Q1	dei	Document Period End Date DocumentPeriodEndDate	2014-03-31
CY2014Q1	dei	Amendment Flag AmendmentFlag	false
CY2014Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014Q1	dei	Entity Filer Category EntityFilerCategory	Smaller Reporting Company
CY2014Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	29442508	shares
CY2014Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2014Q1	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	405326000	USD
CY2013Q4	osbc	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	-3070000	USD
CY2014Q1	osbc	Available For Sale Securities Gross Unrealized Gain Accumulated In Investments AvailableForSaleSecuritiesGrossUnrealizedGainAccumulatedInInvestments	-2986000	USD
CY2013Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-2500000	USD
CY2014Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-1000000	USD
CY2014Q1	osbc	Proceeds From Redemption Of Federal Home Loan Bank Stock ProceedsFromRedemptionOfFederalHomeLoanBankStock	0	USD
CY2013Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	5038000	USD
CY2013Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	33596000	USD
CY2014Q1	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	24229000	USD
CY2014Q1	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1247000	USD
CY2013Q1	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	1113302000	USD
CY2013Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	77649000	USD
CY2013Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1035653000	USD
CY2014Q1	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1067039000	USD
CY2014Q1	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	44198000	USD
CY2013Q1	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	65663000	USD
CY2012Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	72423000	USD
CY2014Q1	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	40220000	USD
CY2013Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	41537000	USD
CY2013Q1	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	6985000	USD
CY2014Q1	us-gaap	Real Estate Acquisitions Through Foreclosures RealEstateAcquisitionsThroughForeclosures	4688000	USD
CY2013Q1	us-gaap	Real Estate Improvements RealEstateImprovements	50000	USD
CY2013Q1	osbc	Real Estate Cost Of Real Estate Sold Net Of Gain Loss RealEstateCostOfRealEstateSoldNetOfGainLoss	11661000	USD
CY2014Q1	osbc	Real Estate Cost Of Real Estate Sold Net Of Gain Loss RealEstateCostOfRealEstateSoldNetOfGainLoss	5569000	USD
CY2012Q4	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	31454000	USD
CY2013Q1	us-gaap	Real Estate Owned Valuation Allowance RealEstateOwnedValuationAllowance	30966000	USD
CY2013Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	373389000	USD
CY2014Q1	osbc	Real Estate Owned Valuation Allowance Provision Net Of Adjustment RealEstateOwnedValuationAllowanceProvisionNetOfAdjustment	436000	USD
CY2013Q1	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	2622000	USD
CY2014Q1	us-gaap	Real Estate Owned Valuation Allowance Amounts Applied RealEstateOwnedValuationAllowanceAmountsApplied	2647000	USD
CY2013Q1	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	147000	USD
CY2013Q1	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	181000	USD
CY2014Q1	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	386000	USD
CY2013Q1	osbc	Real Estate Owned Valuation Allowance Provision Net Of Adjustment RealEstateOwnedValuationAllowanceProvisionNetOfAdjustment	1987000	USD
CY2013Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	228589000	USD
CY2013Q1	osbc	Real Estate Acquired Through Foreclosure Operating Expenses RealEstateAcquiredThroughForeclosureOperatingExpenses	1699000	USD
CY2014Q1	osbc	Real Estate Acquired Through Foreclosure Operating Expenses RealEstateAcquiredThroughForeclosureOperatingExpenses	1237000	USD
CY2013Q1	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	408000	USD
CY2014Q1	us-gaap	Other Real Estate Revenue OtherRealEstateRevenue	279000	USD
CY2013Q1	osbc	Foreclosed Real Estate Expense Net Of Lease Revenue ForeclosedRealEstateExpenseNetOfLeaseRevenue	3097000	USD
CY2014Q1	osbc	Foreclosed Real Estate Expense Net Of Lease Revenue ForeclosedRealEstateExpenseNetOfLeaseRevenue	1008000	USD
CY2014Q1	us-gaap	Real Estate Other Deductions RealEstateOtherDeductions	-589000	USD
CY2013Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	297852000	USD
CY2013Q4	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	309859000	USD
CY2013Q4	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	288345000	USD
CY2013Q4	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	184094000	USD
CY2013Q4	us-gaap	Deposits Deposits	1682128000	USD
CY2014Q1	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	387090000	USD
CY2014Q1	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	244944000	USD
CY2014Q1	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	309385000	USD
CY2014Q1	us-gaap	Deposits Money Market Deposits DepositsMoneyMarketDeposits	318192000	USD
CY2014Q1	us-gaap	Time Deposits Less Than100000 TimeDepositsLessThan100000	282569000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1065	pure
CY2014Q1	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0400	pure
CY2014Q1	us-gaap	Time Deposits100000 Or More TimeDeposits100000OrMore	182101000	USD
CY2014Q1	us-gaap	Deposits Deposits	1724281000	USD
CY2013Q4	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	131438000	USD
CY2014Q1	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	23212000	USD
CY2014Q1	us-gaap	Debt Longterm And Shortterm Combined Amount DebtLongtermAndShorttermCombinedAmount	147090000	USD
CY2014Q1	osbc	Payments For Accrued And Unpaid Interest On Outstanding Trust Preferred Securities PaymentsForAccruedAndUnpaidInterestOnOutstandingTrustPreferredSecurities	19700000	USD
CY2014Q1	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	5500000	USD
CY2014Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	1908332	shares
CY2014Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	45368	shares
CY2014Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	66000	USD
CY2013Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14000	USD
CY2013Q1	osbc	Weighted Average Number Of Shares Outstanding Excluding Share Based Payment Awards WeightedAverageNumberOfSharesOutstandingExcludingShareBasedPaymentAwards	13947454	shares
CY2014Q1	osbc	Weighted Average Number Of Shares Outstanding Excluding Share Based Payment Awards WeightedAverageNumberOfSharesOutstandingExcludingShareBasedPaymentAwards	13912523	shares
CY2013Q1	osbc	Weighted Average Number Of Share Based Payment Awards WeightedAverageNumberOfShareBasedPaymentAwards	210069	shares
CY2014Q1	osbc	Weighted Average Number Of Share Based Payment Awards WeightedAverageNumberOfShareBasedPaymentAwards	169111	shares
CY2013Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-35000	USD
CY2013Q1	osbc	Other Comprehensive Income Available For Sale Securities Tax Portion On Net Unrealized Gains Attributable To Parent OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxPortionOnNetUnrealizedGainsAttributableToParent	-17000	USD
CY2013Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-18000	USD
CY2013Q1	osbc	Other Comprehensive Income Realized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeRealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1453000	USD
CY2013Q1	osbc	Other Comprehensive Income Available For Sale Securities Tax Portion On Net Realized Gains Attributable To Parent OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxPortionOnNetRealizedGainsAttributableToParent	-596000	USD
CY2013Q1	osbc	Other Comprehensive Income Loss Net Of Tax Portion Of Realized Gains Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionOfRealizedGainsAttributableToParent	-857000	USD
CY2013Q1	us-gaap	Undistributed Earnings UndistributedEarnings	4182000	USD
CY2014Q1	us-gaap	Undistributed Earnings UndistributedEarnings	630000	USD
CY2013Q1	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	0.30
CY2014Q1	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	0.04
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2014Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
CY2013Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14076114	shares
CY2014Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13921023	shares
CY2013Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14157523	shares
CY2014Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14081634	shares
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	4182000	USD
CY2014Q1	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	630000	USD
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.04
CY2014Q1	osbc	Fair Value Measurement Significant Transfers Between Levels FairValueMeasurementSignificantTransfersBetweenLevels	0	USD
CY2013Q1	osbc	Fair Value Measurement Significant Transfers Between Levels FairValueMeasurementSignificantTransfersBetweenLevels	0	USD
CY2013Q1	osbc	Other Comprehensive Income Available For Sale Securities Unrealized Holding Gain Loss Net Reclassification Adjustment For Amounts Realized After Tax OtherComprehensiveIncomeAvailableForSaleSecuritiesUnrealizedHoldingGainLossNetReclassificationAdjustmentForAmountsRealizedAfterTax	-875000	USD
CY2014Q1	us-gaap	Capital Capital	207702000	USD
CY2013Q4	us-gaap	Capital Capital	200139000	USD
CY2014Q1	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	104702000	USD
CY2013Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	100826000	USD
CY2014Q1	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1587	pure
CY2013Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1588	pure
CY2014Q1	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2013Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800	pure
CY2014Q1	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	141943000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	134199000	USD
CY2014Q1	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	52329000	USD
CY2013Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	50403000	USD
CY2014Q1	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1085	pure
CY2013Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0400	pure
CY2014Q1	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	141943000	USD
CY2013Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	134199000	USD
CY2014Q1	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	77884000	USD
CY2013Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	77126000	USD
CY2014Q1	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0729	pure
CY2013Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.0696	pure
CY2014Q1	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2013Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400	pure
CY2014Q1	osbc	Dividend Restrictions Number Of Previous Years Retained Profit DividendRestrictionsNumberOfPreviousYearsRetainedProfit	P2Y
CY2013Q1	osbc	Income Tax Reconciliation General Business Credit IncomeTaxReconciliationGeneralBusinessCredit	15000	USD
CY2013Q4	osbc	Loans Fully Charged Carrying Value LoansFullyChargedCarryingValue	0	USD
CY2014Q1	osbc	Loans Fully Charged Carrying Value LoansFullyChargedCarryingValue	0	USD
CY2009Q1	us-gaap	Proceeds From Issuance Of Preferred Stock Preference Stock And Warrants ProceedsFromIssuanceOfPreferredStockPreferenceStockAndWarrants	73000000	USD
CY2014Q1	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	23000	USD
CY2014Q1	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7000	USD
CY2014Q1	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	889000	USD
CY2014Q1	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	279000	USD
CY2014Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1198000	USD
CY2013Q1	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1500000	USD
CY2013Q1	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	328000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-1828000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	11527000	USD
CY2014Q1	osbc	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDeferredCompensation	792000	USD
CY2014Q1	osbc	Deferred Tax Assets Goodwill And Intangible Assets Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssetsIntangibleAssets	1822000	USD
CY2014Q1	osbc	Deferred Tax Assets Goodwill And Intangible Assets Goodwill DeferredTaxAssetsGoodwillAndIntangibleAssetsGoodwill	14859000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	589000	USD
CY2014Q1	osbc	Deferred Tax Assets Other Real Estate Owned Write Downs DeferredTaxAssetsOtherRealEstateOwnedWriteDowns	9062000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	29272000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	12146000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1444000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	560000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	82073000	USD
CY2014Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	938000	USD
CY2014Q1	osbc	Deferred Tax Liabilities Accretion On Securities DeferredTaxLiabilitiesAccretionOnSecurities	8000	USD
CY2014Q1	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	2485000	USD
CY2014Q1	osbc	Deferred Tax Liabilities State Tax Benefits DeferredTaxLiabilitiesStateTaxBenefits	6896000	USD
CY2014Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	175000	USD
CY2014Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	10502000	USD
CY2014Q1	osbc	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	71571000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	5245000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2363000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	74453000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	12725000	USD
CY2013Q4	osbc	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Deferred Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsDeferredCompensation	788000	USD
CY2013Q4	osbc	Deferred Tax Assets Goodwill And Intangible Assets Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssetsIntangibleAssets	1656000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Provision For Loan Losses DeferredIncomeTaxExpenseBenefitProvisionForLoanLosses	1198000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Deferred Compensation DeferredIncomeTaxExpenseBenefitDeferredCompensation	-4000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Goodwill And Intangible Assets Intangible Assets DeferredIncomeTaxExpenseBenefitGoodwillAndIntangibleAssetsIntangibleAssets	-166000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Share Based Compensation Cost DeferredIncomeTaxExpenseBenefitShareBasedCompensationCost	-6000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Other Real Estate Owned Write Downs DeferredIncomeTaxExpenseBenefitOtherRealEstateOwnedWriteDowns	979000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Operating Loss Carryforwards Domestic DeferredIncomeTaxExpenseBenefitOperatingLossCarryforwardsDomestic	-1249000	USD
CY2014Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	665000	USD
CY2013Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	1177000	USD
CY2014Q1	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	55768000	USD
CY2013Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	55410000	USD
CY2013Q4	osbc	Deferred Tax Assets Goodwill And Intangible Assets Goodwill DeferredTaxAssetsGoodwillAndIntangibleAssetsGoodwill	15252000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	583000	USD
CY2013Q4	osbc	Deferred Tax Assets Other Real Estate Owned Write Downs DeferredTaxAssetsOtherRealEstateOwnedWriteDowns	10041000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	28023000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	11847000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1444000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1166000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	83525000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1035000	USD
CY2013Q4	osbc	Deferred Tax Liabilities Accretion On Securities DeferredTaxLiabilitiesAccretionOnSecurities	8000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Mortgage Servicing Rights DeferredTaxLiabilitiesMortgageServicingRights	2571000	USD
CY2013Q4	osbc	Deferred Tax Liabilities State Tax Benefits DeferredTaxLiabilitiesStateTaxBenefits	6994000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	178000	USD
CY2013Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	10786000	USD
CY2013Q4	osbc	Deferred Tax Assets Liabilities Gross DeferredTaxAssetsLiabilitiesGross	72739000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	4927000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2363000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	75303000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Operating Loss Carryforwards State And Local DeferredIncomeTaxExpenseBenefitOperatingLossCarryforwardsStateAndLocal	-299000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Depreciation DeferredIncomeTaxExpenseBenefitDepreciation	-97000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Mortgage Servicing Rights DeferredIncomeTaxExpenseBenefitMortgageServicingRights	-86000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Goodwill And Intangible Assets Goodwill DeferredIncomeTaxExpenseBenefitGoodwillAndIntangibleAssetsGoodwill	393000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit State Tax Benefits DeferredIncomeTaxExpenseBenefitStateTaxBenefits	-98000	USD
CY2014Q1	osbc	Deferred Income Tax Expense Benefit Other DeferredIncomeTaxExpenseBenefitOther	603000	USD
CY2014Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1168000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Provision For Loan Losses DeferredIncomeTaxExpenseBenefitProvisionForLoanLosses	823000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Deferred Compensation DeferredIncomeTaxExpenseBenefitDeferredCompensation	-13000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Goodwill And Intangible Assets Intangible Assets DeferredIncomeTaxExpenseBenefitGoodwillAndIntangibleAssetsIntangibleAssets	-172000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Share Based Compensation Cost DeferredIncomeTaxExpenseBenefitShareBasedCompensationCost	226000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Other Real Estate Owned Write Downs DeferredIncomeTaxExpenseBenefitOtherRealEstateOwnedWriteDowns	2873000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Operating Loss Carryforwards Domestic DeferredIncomeTaxExpenseBenefitOperatingLossCarryforwardsDomestic	-1829000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Operating Loss Carryforwards State And Local DeferredIncomeTaxExpenseBenefitOperatingLossCarryforwardsStateAndLocal	-551000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Depreciation DeferredIncomeTaxExpenseBenefitDepreciation	14000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Premiums And Discounts On Securities Net DeferredIncomeTaxExpenseBenefitPremiumsAndDiscountsOnSecuritiesNet	20000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Mortgage Servicing Rights DeferredIncomeTaxExpenseBenefitMortgageServicingRights	156000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Goodwill And Intangible Assets Goodwill DeferredIncomeTaxExpenseBenefitGoodwillAndIntangibleAssetsGoodwill	392000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit State Tax Benefits DeferredIncomeTaxExpenseBenefitStateTaxBenefits	-115000	USD
CY2013Q1	osbc	Deferred Income Tax Expense Benefit Other DeferredIncomeTaxExpenseBenefitOther	4000	USD
CY2014Q1	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1190000	USD
CY2014Q1	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	67000	USD
CY2014Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	-125000	USD
CY2014Q1	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	186000	USD
CY2014Q1	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	14000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1915000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	51000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Life Insurance IncomeTaxReconciliationNondeductibleExpenseLifeInsurance	-143000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	291000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	76000	USD
CY2013Q1	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-245000	USD
CY2014Q1	us-gaap	Cash And Due From Banks CashAndDueFromBanks	40245000	USD
CY2013Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	33210000	USD
CY2014Q1	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	14242000	USD
CY2013Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	14450000	USD
CY2014Q1	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	54487000	USD
CY2013Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	47660000	USD
CY2014Q1	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	264298000	USD
CY2013Q4	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	256571000	USD
CY2014Q1	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	10292000	USD
CY2013Q4	us-gaap	Federal Home Loan Bank Stock And Federal Reserve Bank Stock FederalHomeLoanBankStockAndFederalReserveBankStock	10292000	USD
CY2014Q1	us-gaap	Loans Held For Sale Other LoansHeldForSaleOther	2507000	USD
CY2013Q4	us-gaap	Loans Held For Sale Other LoansHeldForSaleOther	3822000	USD
CY2014Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	25476000	USD
CY2014Q1	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1085761000	USD
CY2013Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1073975000	USD
CY2014Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	45716000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	46005000	USD
CY2014Q1	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	5614000	USD
CY2013Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	5807000	USD
CY2014Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	74453000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	75303000	USD
CY2014Q1	us-gaap	Other Assets OtherAssets	19426000	USD
CY2013Q4	us-gaap	Other Assets OtherAssets	14284000	USD
CY2014Q1	us-gaap	Assets Assets	2059419000	USD
CY2013Q4	us-gaap	Assets Assets	2004034000	USD
CY2014Q1	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	872521000	USD
CY2013Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	836300000	USD
CY2014Q1	us-gaap	Time Deposits TimeDeposits	464670000	USD
CY2013Q4	us-gaap	Time Deposits TimeDeposits	472439000	USD
CY2013Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	22560000	USD
CY2014Q1	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	20000000	USD
CY2013Q4	us-gaap	Other Short Term Borrowings OtherShortTermBorrowings	5000000	USD
CY2014Q1	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58378000	USD
CY2013Q4	us-gaap	Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust	58378000	USD
CY2014Q1	us-gaap	Subordinated Debt SubordinatedDebt	45000000	USD
CY2013Q4	us-gaap	Subordinated Debt SubordinatedDebt	45000000	USD
CY2014Q1	us-gaap	Notes Payable To Bank NotesPayableToBank	500000	USD
CY2013Q4	us-gaap	Notes Payable To Bank NotesPayableToBank	500000	USD
CY2014Q1	us-gaap	Other Liabilities OtherLiabilities	38560000	USD
CY2013Q4	us-gaap	Other Liabilities OtherLiabilities	42776000	USD
CY2014Q1	us-gaap	Liabilities Liabilities	1909931000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	1856342000	USD
CY2014Q1	us-gaap	Preferred Stock Value PreferredStockValue	73000000	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	72942000	USD
CY2014Q1	us-gaap	Common Stock Value CommonStockValue	18840000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	18830000	USD
CY2014Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	66297000	USD
CY2013Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	66212000	USD
CY2014Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	94693000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	92549000	USD
CY2014Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7493000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7038000	USD
CY2014Q1	us-gaap	Treasury Stock Value TreasuryStockValue	95849000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	95803000	USD
CY2014Q1	us-gaap	Stockholders Equity StockholdersEquity	149488000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	147692000	USD
CY2014Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2059419000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2004034000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2013Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	300000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	73000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	73000	shares
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	18829734	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	13917108	shares
CY2013Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	4912626	shares
CY2014Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2014Q1	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000
CY2014Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	300000	shares
CY2014Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	73000	shares
CY2014Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	73000	shares
CY2014Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2014Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	60000000	shares
CY2014Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	18839734	shares
CY2014Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	13917508	shares
CY2014Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	4922226	shares
CY2013Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-875000	USD
CY2013Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4596000	USD
CY2014Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	12938000	USD
CY2013Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	14914000	USD
CY2014Q1	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	25000	USD
CY2013Q1	us-gaap	Interest And Fee Income Loans Held For Sale Mortgages InterestAndFeeIncomeLoansHeldForSaleMortgages	41000	USD
CY2014Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	3502000	USD
CY2013Q1	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	2298000	USD
CY2014Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	148000	USD
CY2013Q1	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	119000	USD
CY2014Q1	us-gaap	Dividend Income Operating DividendIncomeOperating	76000	USD
CY2013Q1	us-gaap	Dividend Income Operating DividendIncomeOperating	76000	USD
CY2014Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	15000	USD
CY2013Q1	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	42000	USD
CY2014Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	16704000	USD
CY2013Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	17490000	USD
CY2014Q1	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	199000	USD
CY2013Q1	us-gaap	Interest Expense Now Accounts Money Market Accounts And Savings Deposits InterestExpenseNOWAccountsMoneyMarketAccountsAndSavingsDeposits	228000	USD
CY2014Q1	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	1321000	USD
CY2013Q1	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	1853000	USD
CY2014Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1000	USD
CY2013Q1	us-gaap	Interest Expense Securities Sold Under Agreements To Repurchase InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase	1000	USD
CY2014Q1	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	1000	USD
CY2013Q1	us-gaap	Interest Expense Short Term Borrowings InterestExpenseShortTermBorrowings	19000	USD
CY2014Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1387000	USD
CY2013Q1	us-gaap	Interest Expense Junior Subordinated Debentures InterestExpenseJuniorSubordinatedDebentures	1287000	USD
CY2014Q1	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	196000	USD
CY2013Q1	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	196000	USD
CY2014Q1	us-gaap	Interest Expense Debt InterestExpenseDebt	4000	USD
CY2013Q1	us-gaap	Interest Expense Debt InterestExpenseDebt	4000	USD
CY2014Q1	us-gaap	Interest Expense InterestExpense	3109000	USD
CY2013Q1	us-gaap	Interest Expense InterestExpense	3588000	USD
CY2014Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	13595000	USD
CY2013Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	13902000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1089000	USD
CY2014Q1	osbc	Other Comprehensive Income Available For Sale Securities Tax Portion On Net Unrealized Gains Attributable To Parent OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxPortionOnNetUnrealizedGainsAttributableToParent	-448000	USD
CY2014Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	14595000	USD
CY2013Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	16402000	USD
CY2014Q1	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	1459000	USD
CY2013Q1	us-gaap	Fees And Commissions Fiduciary And Trust Activities FeesAndCommissionsFiduciaryAndTrustActivities	1491000	USD
CY2014Q1	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	1720000	USD
CY2013Q1	us-gaap	Fees And Commissions Depositor Accounts FeesAndCommissionsDepositorAccounts	1677000	USD
CY2014Q1	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	112000	USD
CY2013Q1	us-gaap	Fees And Commissions Mortgage Banking FeesAndCommissionsMortgageBanking	230000	USD
CY2014Q1	us-gaap	Servicing Fees Net ServicingFeesNet	-47000	USD
CY2013Q1	us-gaap	Servicing Fees Net ServicingFeesNet	244000	USD
CY2014Q1	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	662000	USD
CY2013Q1	us-gaap	Gain Loss On Sale Of Mortgage Loans GainLossOnSaleOfMortgageLoans	1976000	USD
CY2014Q1	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	-69000	USD
CY2013Q1	us-gaap	Gain Loss On Sale Of Securities Net GainLossOnSaleOfSecuritiesNet	1453000	USD
CY2014Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	358000	USD
CY2013Q1	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	407000	USD
CY2014Q1	osbc	Card Interchange Income Debit CardInterchangeIncomeDebit	830000	USD
CY2013Q1	osbc	Card Interchange Income Debit CardInterchangeIncomeDebit	792000	USD
CY2014Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1296000	USD
CY2013Q1	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	1737000	USD
CY2014Q1	us-gaap	Noninterest Income NoninterestIncome	6321000	USD
CY2013Q1	us-gaap	Noninterest Income NoninterestIncome	10007000	USD
CY2014Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9101000	USD
CY2013Q1	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9032000	USD
CY2014Q1	us-gaap	Occupancy Net OccupancyNet	1481000	USD
CY2013Q1	us-gaap	Occupancy Net OccupancyNet	1279000	USD
CY2014Q1	us-gaap	Equipment Expense EquipmentExpense	983000	USD
CY2013Q1	us-gaap	Equipment Expense EquipmentExpense	1144000	USD
CY2014Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	279000	USD
CY2013Q1	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	1035000	USD
CY2014Q1	us-gaap	General Insurance Expense GeneralInsuranceExpense	489000	USD
CY2013Q1	us-gaap	General Insurance Expense GeneralInsuranceExpense	849000	USD
CY2014Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	512000	USD
CY2013Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	525000	USD
CY2014Q1	us-gaap	Advertising Expense AdvertisingExpense	303000	USD
CY2013Q1	us-gaap	Advertising Expense AdvertisingExpense	166000	USD
CY2014Q1	osbc	Debit Card Interchange Expense DebitCardInterchangeExpense	378000	USD
CY2013Q1	osbc	Debit Card Interchange Expense DebitCardInterchangeExpense	344000	USD
CY2014Q1	us-gaap	Legal Fees LegalFees	257000	USD
CY2013Q1	us-gaap	Legal Fees LegalFees	323000	USD
CY2014Q1	osbc	Other Real Estate Owned Expense OtherRealEstateOwnedExpense	1008000	USD
CY2013Q1	osbc	Other Real Estate Owned Expense OtherRealEstateOwnedExpense	3097000	USD
CY2014Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2725000	USD
CY2013Q1	us-gaap	Other Noninterest Expense OtherNoninterestExpense	3144000	USD
CY2014Q1	us-gaap	Noninterest Expense NoninterestExpense	17516000	USD
CY2013Q1	us-gaap	Noninterest Expense NoninterestExpense	20938000	USD
CY2014Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3400000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	5471000	USD
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	2202000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	5471000	USD
CY2014Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1572000	USD
CY2013Q1	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	1289000	USD
CY2014Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	630000	USD
CY2013Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4182000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-641000	USD
CY2014Q1	osbc	Other Comprehensive Income Realized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeRealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	69000	USD
CY2014Q1	osbc	Other Comprehensive Income Available For Sale Securities Tax Portion On Net Realized Gains Attributable To Parent OtherComprehensiveIncomeAvailableForSaleSecuritiesTaxPortionOnNetRealizedGainsAttributableToParent	28000	USD
CY2014Q1	osbc	Other Comprehensive Income Loss Net Of Tax Portion Of Realized Gains Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionOfRealizedGainsAttributableToParent	41000	USD
CY2014Q1	osbc	Other Comprehensive Income Available For Sale Securities Unrealized Holding Gain Loss Net Reclassification Adjustment For Amounts Realized After Tax OtherComprehensiveIncomeAvailableForSaleSecuritiesUnrealizedHoldingGainLossNetReclassificationAdjustmentForAmountsRealizedAfterTax	-600000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Reclassification Adjustment For Held To Maturity Transferred To Available For Sale Securities Before Tax OtherComprehensiveIncomeReclassificationAdjustmentForHeldToMaturityTransferredToAvailableForSaleSecuritiesBeforeTax	247000	USD
CY2014Q1	osbc	Other Comprehensive Income Reclassification Adjustment For Available For Sale Transferred To Held To Maturity Securities Tax OtherComprehensiveIncomeReclassificationAdjustmentForAvailableForSaleTransferredToHeldToMaturitySecuritiesTax	102000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Loss Transfers From Held To Maturity To Available For Sale Securities Net Of Tax OtherComprehensiveIncomeLossTransfersFromHeldToMaturityToAvailableForSaleSecuritiesNetOfTax	145000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-455000	USD
CY2014Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1747000	USD
CY2013Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	746000	USD
CY2013Q1	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	106000	USD
CY2013Q1	osbc	Gain On Recapture Of Restricted Stock GainOnRecaptureOfRestrictedStock	612000	USD
CY2013Q1	us-gaap	Interest Paid InterestPaid	225000	USD
CY2013Q1	osbc	Non Cash Transfer Of Loans To Other Real Estate Owned NonCashTransferOfLoansToOtherRealEstateOwned	6985000	USD
CY2013Q1	us-gaap	Transfer Of Investments TransferOfInvestments	5329000	USD
CY2013Q1	osbc	Accretion On Preferred Stock Warrants AccretionOnPreferredStockWarrants	261000	USD
CY2013Q1	osbc	Fair Value Difference On Recapture Of Restricted Stock FairValueDifferenceOnRecaptureOfRestrictedStock	43000	USD
CY2013Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	53138000	USD
CY2013Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	57755000	USD
CY2013Q1	osbc	Increase Decrease In Accrued Interest Receivable And Other Assets IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets	5215000	USD
CY2013Q1	osbc	Increase Decrease In Accrued Interest Payable And Other Liabilities IncreaseDecreaseInAccruedInterestPayableAndOtherLiabilities	634000	USD
CY2013Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	-414000	USD
CY2013Q1	us-gaap	Share Based Compensation ShareBasedCompensation	14000	USD
CY2013Q1	osbc	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	1987000	USD
CY2013Q1	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	5000	USD
CY2013Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	18055000	USD
CY2013Q1	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	2165000	USD
CY2013Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	231155000	USD
CY2013Q1	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	240190000	USD
CY2014Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	15474000	USD
CY2014Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	5955000	USD
CY2014Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	355000	USD
CY2013Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	1037000	USD
CY2013Q1	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2927000	USD
CY2013Q1	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-100000000	USD
CY2013Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	185000	USD
CY2013Q1	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-96221000	USD
CY2013Q1	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-47390000	USD
CY2013Q1	osbc	Interest Paid For Deposits InterestPaidForDeposits	2124000	USD
CY2014Q1	osbc	Interest Paid For Deposits InterestPaidForDeposits	1584000	USD
CY2014Q1	us-gaap	Interest Paid InterestPaid	202000	USD
CY2014Q1	osbc	Non Cash Transfer Of Loans To Other Real Estate Owned NonCashTransferOfLoansToOtherRealEstateOwned	4688000	USD
CY2014Q1	osbc	Accretion On Preferred Stock Warrants AccretionOnPreferredStockWarrants	58000	USD
CY2014Q1	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	42153000	USD
CY2014Q1	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	652000	USD
CY2014Q1	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	15000000	USD
CY2014Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	46000	USD
CY2014Q1	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	57759000	USD
CY2014Q1	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	6827000	USD
CY2014Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2361000	USD
CY2014Q1	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	31781000	USD
CY2014Q1	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	62931000	USD
CY2014Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1893000	USD
CY2014Q1	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	9220000	USD
CY2014Q1	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-45990000	USD
CY2013Q1	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	-26971000	USD
CY2013Q1	us-gaap	Payments To Acquire Projects PaymentsToAcquireProjects	50000	USD
CY2013Q1	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	11842000	USD
CY2013Q1	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6000	USD
CY2013Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1123000	USD
CY2014Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	644000	USD
CY2014Q1	us-gaap	Mortgage Servicing Rights Msr Impairment Recovery MortgageServicingRightsMSRImpairmentRecovery	304000	USD
CY2014Q1	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	19764000	USD
CY2014Q1	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	21592000	USD
CY2014Q1	osbc	Increase Decrease In Accrued Interest Receivable And Other Assets IncreaseDecreaseInAccruedInterestReceivableAndOtherAssets	6238000	USD
CY2014Q1	osbc	Increase Decrease In Accrued Interest Payable And Other Liabilities IncreaseDecreaseInAccruedInterestPayableAndOtherLiabilities	-3082000	USD
CY2014Q1	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	474000	USD
CY2014Q1	us-gaap	Share Based Compensation ShareBasedCompensation	66000	USD
CY2014Q1	osbc	Real Estate Owned Valuation Allowance Provision1 RealEstateOwnedValuationAllowanceProvision1	436000	USD
CY2014Q1	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-4942000	USD
CY2012Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	128507000	USD
CY2014Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-1168000	USD
CY2013Q1	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	46666000	USD
CY2013Q1	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	81117000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	72552000	USD
CY2013Q1	us-gaap	Stockholders Equity StockholdersEquity	75854000	USD
CY2013Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-875000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-455000	USD
CY2014Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	66000	USD
CY2013Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14000	USD
CY2013Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	185000	USD
CY2014Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	46000	USD
CY2013Q1	osbc	Preferred Stock Dividends And Other Adjustments Equity Impact PreferredStockDividendsAndOtherAdjustmentsEquityImpact	511000	USD
CY2014Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	318000	USD
CY2013Q1	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	613000	USD
CY2013Q1	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	38634000	USD
CY2013Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	5500000	USD
CY2013Q4	us-gaap	Federal Reserve Bank Stock FederalReserveBankStock	4800000	USD
CY2014Q1	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	-29000	USD
CY2014Q1	us-gaap	Adjustment To Additional Paid In Capital Income Tax Effect From Share Based Compensation Net AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet	29000	USD

Files In Submission

Name	View Source	Status
0001104659-14-037972-index-headers.html	Edgar Link	pending
0001104659-14-037972-index.html	Edgar Link	pending
0001104659-14-037972.txt	Edgar Link	pending
0001104659-14-037972-xbrl.zip	Edgar Link	pending
a14-9609_110q.htm	Edgar Link	pending
a14-9609_1ex31d1.htm	Edgar Link	pending
a14-9609_1ex31d2.htm	Edgar Link	pending
a14-9609_1ex32d1.htm	Edgar Link	pending
a14-9609_1ex32d2.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xls	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
osbc-20140331.xml	Edgar Link	completed
osbc-20140331.xsd	Edgar Link	pending
osbc-20140331_cal.xml	Edgar Link	unprocessable
osbc-20140331_def.xml	Edgar Link	unprocessable
osbc-20140331_lab.xml	Edgar Link	unprocessable
osbc-20140331_pre.xml	Edgar Link	unprocessable
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$OSBC
Old Second Bancorp Inc Stock $osbc

2014 Q1 Form 10-Q Financial Statement

#000110465914037972 Filed on May 13, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OSBC Old Second Bancorp Inc Stock $osbc

2014 Q1 Form 10-Q Financial Statement

#000110465914037972 Filed on May 13, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OSBC
Old Second Bancorp Inc Stock $osbc