XML 31 R22.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Organization and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
--- | ---
Dec. 31, 2021
Organization and Summary of Significant Accounting Policies |
Schedule of Adoption of ASU 2016-13 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | July 1, 2020
​ |  | As reported |  | As reported |  | Impact of
​ |  | under |  | prior to |  | adoption
(dollars in thousands) |  | ASU 2016-13 |  | ASU 2016-13 |  | ASU 2016-13
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loans receivable | ​ | $ | 2,142,363 | ​ | $ | 2,141,929 | ​ | $ | 434
Allowance for credit losses on loans: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Real Estate Loans: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Residential | ​ |  | 8,396 | ​ |  | 4,875 | ​ |  | 3,521
Construction | ​ |  | 1,889 | ​ |  | 2,010 | ​ |  | (121)
Commercial | ​ |  | 15,988 | ​ |  | 12,132 | ​ |  | 3,856
Consumer loans | ​ |  | 2,247 | ​ |  | 1,182 | ​ |  | 1,065
Commercial loans | ​ |  | 5,952 | ​ |  | 4,940 | ​ |  | 1,012
Total allowance for credit losses on loans | ​ | $ | 34,472 | ​ | $ | 25,139 | ​ | $ | 9,333
Total allowance for credit losses on off-balance sheet credit exposures | ​ | $ | 2,227 | ​ | $ | 1,959 | ​ | $ | 268

X
- References No definition available. + Details
Name: | smbc_OrganizationAndSummaryOfSignificantAccountingPoliciesAbstract
Namespace Prefix: | smbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the textual narrative disclosure of Schedule of Adoption of ASU 2016-13, during the indicated time period. + References No definition available. + Details
Name: | smbc_ScheduleOfAdoptionOfAsu201613TableTextBlock
Namespace Prefix: | smbc_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration