| Component: (Network and Table) | |
|---|---|
| Network | 100660 - Disclosure - Loans - Changes in Allowance for Loan Losses (Detail) (http://www.investorscommunitybank.com/20161231/taxonomy/role/DisclosureLoansChangesInAllowanceForLoanLossesDetail) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001470205 (http://www.sec.gov/CIK) |
| Receivables [Abstract] | Period [Axis] | |
|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | |
Receivables [Abstract] | ||
Balance, beginning of year | ||
Provision for loan losses | 2,959,000 | (1,019,000) |
Loans charged off | ( | ( |
Recoveries | ||
Balance, end of period | 10,405,000 | |