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Federal Income Taxes: Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Sep. 30, 2018
--- | --- | ---
Deferred Tax Assets |  |
Allowance for loan losses | $ 1,550 | $ 2,021
Allowance for OREO losses | 218 | 311
Unearned ESOP shares | 0 | 32
Core deposit intangible | 0 | 31
OTTI credit impairment on investment securities | 97 | 104
Accrued interest on loans | 76 | 10
Net unrealized losses on investment securities | 0 | 42
Deferred compensation and bonuses | 520 | 56
Reserve for loan commitments | 51 | 43
Other | 82 | 29
Total deferred tax assets | 2,594 | 2,679
Deferred Tax Liabilities |  |
Goodwill | 1,187 | 1,107
Servicing rights | 506 | 426
Depreciation | 494 | 283
Loan fees/costs | 267 | 121
FHLB stock dividends | 82 | 82
Prepaid expenses | 70 | 74
Purchase accounting adjustment | 110 | 0
Net unrealized gains on investment securities and investments in equity securities | 15 | 0
Other | 0 | 2
Total deferred tax liabilities | 2,731 | 2,095
Net deferred tax assets (liabilities) | $ (137) | $ 584

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