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Investment Securities: Schedule of Available for Sale Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Sep. 30, 2017 | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | --- | ---
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount | $ 600 | $ 600 |
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value | 600 | 600 |
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount | 7,840 | 4,698 |
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value | 7,882 | 4,708 |
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount | 44,245 | 41,404 |
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value | 44,236 | 41,374 |
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount | 12,066 | 13,739 |
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value | 12,210 | 13,947 |
Investment securities – held to maturity, at cost | 64,751 | 60,441 |
Held-to-maturity Securities, Fair Value | 64,928 | 60,629 |
Available-for-sale Securities | 8,940 | 9,318 |
Total Investment Securities, Amortized Cost Basis | 73,322 | 69,395 | $ 69,395
Total Investment Securites | 73,868 | $ 69,947 | 69,947
Available for sale |  |  |
Due in one year or less, Amortized Cost | 0 |  | 0
Due after one through five years, Amortized Cost | 0 |  | 0
Due after five through ten years, Amortized Cost | 0 |  | 0
Due after ten years, Amortized Cost | 8,571 |  | 8,954
Total investment securities, Amortized Cost | 8,571 |  | 8,954
Available-for-sale Securities | 8,940 |  | 9,318
Due in one year of less, Estimated Fair Value | 0 |  | 0
Due after one through five years, Estimated Fair Value | 0 |  | 0
Due after five through ten years, Estimated Fair Value | 0 |  | 0
Due after ten years, Estimated Fair Value | $ 8,940 |  | $ 9,318

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27198-111563 + Details
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