XML 43 R30.htm IDEA: XBRL DOCUMENT v3.25.1

Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2025

Other Real Estate Owned

Schedule of activity in the other real estate owned (OREO) portfolio, net of valuation reserve

​

​	​	​	​	​	​	​	​
​	​	Three Months Ended					​
​		March 31,
Other real estate owned		2025			2024
Balance at beginning of period	​	$	21,617	​	$	5,123	​
Less:	​	​	​	​	​	​	​
Carrying value of property disposals, net of participation sold	​	​	18,285	​	​	-	​
Period valuation adjustments	​	​	454	​	​	-	​
Balance at end of period	​	$	2,878	​	$	5,123	​

Schedule of activity in valuation allowance

​

​	​	​	​	​	​	​	​
​		Three Months Ended					​
​		March 31,
​		2025			2024
Balance at beginning of period	​	$	1,862	​	$	118	​
Provision for valuation reserves	​	​	454	​	​	-	​
Reductions taken on sales	​	​	(1,463)	​	​	-	​
Balance at end of period	​	$	853	​	$	118	​
​	​	​	​	​	​	​	​

Schedule of expenses related to foreclosed assets, net of lease revenue

​

​	​	​	​	​	​	​	​
​	​	Three Months Ended					​
​	​	March 31,
​		2025			2024
Loss on sales, net	​	$	236	​	$	-	​
Provision for valuation reserves	​	​	454	​	​	-	​
Operating expenses	​	​	1,913	​	​	113	​
Less:	​	​	​	​	​	​	​
Lease revenue	​	​	730	​	​	67	​
Net OREO expense	​	$	1,873	​	$	46	​

​

X

- Definition

Tabular disclosure of expenses related to foreclosed assets, net of lease revenue. Foreclosed assets include all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings.

+ References

No definition available.

+ Details

Name:	osbc_OtherRealEstateExpensesRelatedToForeclosedAssetsTableTextBlock
Namespace Prefix:	osbc_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the change in valuation allowance of other real estate on properties acquired through foreclosure.

+ References

No definition available.

+ Details

Name:	osbc_OtherRealEstateValuationAllowanceRollForwardTableTextBlock
Namespace Prefix:	osbc_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the change in other real estate on properties acquired through foreclosure.

+ References

No definition available.

+ Details

Name:	osbc_RealEstateAcquiredThroughForeclosureRollForwardTableTextBlock
Namespace Prefix:	osbc_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_RealEstateAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration