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ALLOWANCE FOR LOAN LOSSES: Financing Receivables, Aging of Loans (Details 3) - USD ($) $ in Thousands | Mar. 31, 2018 | Mar. 31, 2017
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | $ 2,418 | $ 2,715
Total Past Due and Non-accrual | 2,938 | 2,990
Current | 808,438 | 776,442
Total Loans Receivable | 811,376 | 779,432
30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 520 | 241
90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 34
Commercial and construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total Loans Receivable | 706,270 | 660,189
Commercial and construction | Commercial business |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 178 | 294
Total Past Due and Non-accrual | 185 | 307
Current | 137,487 | 107,064
Total Loans Receivable | 137,672 | 107,371
Commercial and construction | Commercial business | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 7 | 13
Commercial and construction | Commercial business | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Commercial real estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 1,200 | 1,342
Total Past Due and Non-accrual | 1,200 | 1,342
Current | 449,397 | 445,729
Total Loans Receivable | 450,597 | 447,071
Commercial and construction | Commercial real estate | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Commercial real estate | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Land |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 763 | 801
Total Past Due and Non-accrual | 763 | 801
Current | 14,574 | 15,074
Total Loans Receivable | 15,337 | 15,875
Commercial and construction | Land | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Land | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Multi-family |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 0 | 0
Total Past Due and Non-accrual | 0 | 0
Current | 63,080 | 43,715
Total Loans Receivable | 63,080 | 43,715
Commercial and construction | Multi-family | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Multi-family | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Real estate construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 0 | 0
Total Past Due and Non-accrual | 0 | 0
Current | 39,584 | 46,157
Total Loans Receivable | 39,584 | 46,157
Commercial and construction | Real estate construction | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Commercial and construction | Real estate construction | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 0 | 0
Consumer |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Non-accrual | 277 | 278
Total Past Due and Non-accrual | 790 | 540
Current | 104,316 | 118,703
Total Loans Receivable | 105,106 | 119,243
Consumer | 30-89 Days Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | 513 | 228
Consumer | 90 Days and Greater Past Due |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Past Due | $ 0 | $ 34

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