Investment Securities - Carrying value and estimated market values of investment securities (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Jun. 30, 2016 |
Available-for-sale: | | |
Available-for-sale securities, amortized cost basis | $ 62,745 | $ 70,649 |
Available-for-sale securities, gross unrealized gain | 740 | 1,161 |
Available-for-sale securities, gross unrealized (losses) | (1,248) | (1,374) |
Available-for-sale securities, fair value | 62,237 | 70,436 |
Held-to-maturity: | | |
Held-to-maturity securities, amortized cost basis | 117,239 | 144,343 |
Held-to-maturity securities, gross unrealized gain | 1,380 | 2,932 |
Held-to-maturity securities, gross unrealized (loss) | (527) | (58) |
Held-to-maturity securities, fair value | 118,092 | 147,217 |
Debt securities | | |
Available-for-sale: | | |
Available-for-sale securities, amortized cost basis | 52,745 | 60,649 |
Available-for-sale securities, gross unrealized gain | 740 | 1,161 |
Available-for-sale securities, gross unrealized (losses) | (1,248) | (1,374) |
Available-for-sale securities, fair value | 52,237 | 60,436 |
Debt securities | U.S. Government and government-sponsored securities | | |
Available-for-sale: | | |
Available-for-sale from one through five years, amortized cost basis | 1,000 | 1,000 |
Available-for-sale from one through five years, gross unrealized gain | | 4 |
Available-for-sale from one through five years, gross unrealized (losses) | (3) | |
Available-for-sale from one through five years, fair value | 997 | 1,004 |
Available-for-sale after ten years, amortized cost basis | 4,033 | 4,293 |
Available-for-sale from after ten years, gross unrealized gain | | |
Available-for-sale after ten years, gross unrealized (losses) | (40) | (12) |
Available-for-sale after ten years, fair value | 3,993 | 4,281 |
Available-for-sale securities, amortized cost basis | 5,033 | 5,293 |
Available-for-sale securities, gross unrealized gain | | 4 |
Available-for-sale securities, gross unrealized (losses) | (43) | (12) |
Available-for-sale securities, fair value | 4,990 | 5,285 |
Held-to-maturity: | | |
Held-to-maturity securities, debt maturities, Due in one year or less, amortized cost | 2,251 | |
Held-to-maturity securities, debt maturities, Due in one year or less, gross unrealized gain | | |
Held-to-maturity securities, debt maturities, Due in one year or less, gross unrealized losses | (3) | |
Held-to-maturity securities, debt maturities, Due in one year or less, fair value | 2,248 | |
Held-to-maturity from one through five years, amortized cost basis | 6,964 | 9,208 |
Held-to-maturity from one through five years, gross unrealized gain | 116 | 292 |
Held-to-maturity from one through five years, gross unrealized (loss) | | |
Held-to-maturity from one through five years, fair value | 7,080 | 9,500 |
Held-to-maturity from five through ten years, amortized cost basis | | 5,481 |
Held-to-maturity from five through ten years, gross unrealized gains | | 86 |
Held-to-maturity from five through ten years, gross unrealized (loss) | | |
Held-to-maturity from five through ten years, fair value | | 5,567 |
Held-to-maturity after ten years, amortized cost basis | 5,194 | |
Held-to-maturity after ten years gross unrealized gain | | |
Held-to-maturity after ten years, gross unrealized (loss) | (81) | |
Held-to-maturity after ten years gross, fair value | 5,113 | |
Held-to-maturity securities, amortized cost basis | 14,409 | 14,689 |
Held-to-maturity securities, gross unrealized gain | 116 | 378 |
Held-to-maturity securities, gross unrealized (loss) | (84) | |
Held-to-maturity securities, fair value | 14,441 | 15,067 |
Debt securities | Corporate bonds and other securities | | |
Available-for-sale: | | |
Available-for-sale from five through ten years, amortized cost basis | 2,000 | |
Available-for-sale from five through ten years, gross unrealized gain | | |
Available-for-sale from five through ten years, gross unrealized (losses) | (200) | |
Available-for-sale from five through ten years, fair value | 1,800 | |
Available-for-sale after ten years, amortized cost basis | 3,999 | 5,999 |
Available-for-sale from after ten years, gross unrealized gain | | |
Available-for-sale after ten years, gross unrealized (losses) | (414) | (1,024) |
Available-for-sale after ten years, fair value | 3,585 | 4,975 |
Available-for-sale securities, amortized cost basis | 5,999 | |
Available-for-sale securities, gross unrealized gain | | |
Available-for-sale securities, gross unrealized (losses) | (614) | |
Available-for-sale securities, fair value | 5,385 | |
Debt securities | U.S. Government sponsored and guaranteed mortgage-backed securities | | |
Available-for-sale: | | |
Available-for-sale from due one year or less, amortized cost basis | 17 | |
Available-for-sale from due one year or less, gross unrealized gain | | |
Available-for-sale from due one year or less, gross unrealized (losses) | | |
Available-for-sale from due one year or less, fair value | 17 | |
Available-for-sale from one through five years, amortized cost basis | 44 | 171 |
Available-for-sale from one through five years, gross unrealized gain | 1 | 4 |
Available-for-sale from one through five years, gross unrealized (losses) | | |
Available-for-sale from one through five years, fair value | 45 | 175 |
Available-for-sale from five through ten years, amortized cost basis | 8,899 | 10,454 |
Available-for-sale from five through ten years, gross unrealized gain | 42 | 263 |
Available-for-sale from five through ten years, gross unrealized (losses) | (103) | |
Available-for-sale from five through ten years, fair value | 8,838 | 10,717 |
Available-for-sale after ten years, amortized cost basis | 28,946 | 34,398 |
Available-for-sale from after ten years, gross unrealized gain | 238 | 447 |
Available-for-sale after ten years, gross unrealized (losses) | (197) | (13) |
Available-for-sale after ten years, fair value | 28,987 | 34,832 |
Available-for-sale securities, amortized cost basis | 37,906 | 45,023 |
Available-for-sale securities, gross unrealized gain | 281 | 714 |
Available-for-sale securities, gross unrealized (losses) | (300) | (13) |
Available-for-sale securities, fair value | 37,887 | 45,724 |
Held-to-maturity: | | |
Held-to-maturity from one through five years, amortized cost basis | 1,262 | 1,736 |
Held-to-maturity from one through five years, gross unrealized gain | 44 | 97 |
Held-to-maturity from one through five years, gross unrealized (loss) | | |
Held-to-maturity from one through five years, fair value | 1,306 | 1,833 |
Held-to-maturity from five through ten years, amortized cost basis | 5,021 | 1,314 |
Held-to-maturity from five through ten years, gross unrealized gains | 55 | 61 |
Held-to-maturity from five through ten years, gross unrealized (loss) | (3) | |
Held-to-maturity from five through ten years, fair value | 5,073 | 1,375 |
Held-to-maturity after ten years, amortized cost basis | 96,094 | 126,147 |
Held-to-maturity after ten years gross unrealized gain | 1,165 | 2,392 |
Held-to-maturity after ten years, gross unrealized (loss) | (427) | (58) |
Held-to-maturity after ten years gross, fair value | 96,832 | 128,481 |
Held-to-maturity securities, amortized cost basis | 102,377 | 129,197 |
Held-to-maturity securities, gross unrealized gain | 1,264 | 2,550 |
Held-to-maturity securities, gross unrealized (loss) | (430) | (58) |
Held-to-maturity securities, fair value | 103,211 | 131,689 |
Debt securities | Non-agency mortgage-backed securities | | |
Available-for-sale: | | |
Available-for-sale after ten years, amortized cost basis | 3,807 | 4,334 |
Available-for-sale from after ten years, gross unrealized gain | 459 | 443 |
Available-for-sale after ten years, gross unrealized (losses) | (291) | |
Available-for-sale after ten years, fair value | 3,975 | 4,452 |
Debt securities | State agency and municipal obligations | | |
Held-to-maturity: | | |
Held-to-maturity from five through ten years, amortized cost basis | 453 | 457 |
Held-to-maturity from five through ten years, gross unrealized gains | | 4 |
Held-to-maturity from five through ten years, gross unrealized (loss) | (13) | |
Held-to-maturity from five through ten years, fair value | 440 | 461 |
Equity securities | Auction rate preferred | | |
Available-for-sale: | | |
Available-for-sale after ten years, amortized cost basis | 10,000 | 10,000 |
Available-for-sale from after ten years, gross unrealized gain | | |
Available-for-sale after ten years, gross unrealized (losses) | | |
Available-for-sale after ten years, fair value | $ 10,000 | $ 10,000 |