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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock Mutual Holding Company | Common Stock Initial Public Offering | Common Stock | Additional Paid-In Capital Initial Public Offering | Additional Paid-In Capital | Retained Earnings | Unallocated Common Stock of ESOP | Accumulated Other Comprehensive Loss | Mutual Holding Company | Initial Public Offering | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of period at Jun. 30, 2019 |  |  |  |  |  | $ 134,361 |  | $ (11,103) |  |  | $ 123,258
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Cumulative effect of change in accounting principle | ASU 2014-09 |  |  |  |  |  | 291 |  |  |  |  | 291
Cumulative effect of change in accounting principle | ASU 2016-01 |  |  |  |  |  | (116) |  | 116 |  |  |
Net income |  |  |  |  |  | (977) |  |  |  |  | (977)
Other comprehensive income (loss) |  |  |  |  |  |  |  | 241 |  |  | 241
Issuance of common stock | $ 143 | $ 112 |  | $ 108,800 |  |  |  |  | $ 143 | $ 108,912 |
Issuance of common stock (in shares) | 14,287,723 | 11,170,402 |  |  |  |  |  |  |  |  |
Issuance of common stock to the Pioneer Bank Charitable Foundation |  |  | $ 5 |  | $ 5,191 |  |  |  |  |  | 5,196
Issuance of common stock to the Pioneer Bank Charitable Foundation (in shares) |  |  | 519,554 |  |  |  |  |  |  |  |
Purchase of common stock by the ESOP (1,018,325 shares) |  |  |  |  |  |  | $ (13,644) |  |  |  | (13,644)
ESOP shares committed to be released (25,458 and 12,729 shares) |  |  |  |  | 16 |  | 341 |  |  |  | 357
Balance at end of period at Sep. 30, 2019 |  |  | $ 260 |  | 114,007 | 133,559 | (13,303) | (10,746) |  |  | 223,777
Balance at end of period (in shares) at Sep. 30, 2019 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Balance at beginning of period at Jun. 30, 2019 |  |  |  |  |  | 134,361 |  | (11,103) |  |  | 123,258
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  | 2,873
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | 250
Balance at end of period at Dec. 31, 2019 |  |  | $ 260 |  | 114,012 | 137,409 | (12,962) | (10,737) |  |  | 227,982
Balance at end of period (in shares) at Dec. 31, 2019 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Balance at beginning of period at Sep. 30, 2019 |  |  | $ 260 |  | 114,007 | 133,559 | (13,303) | (10,746) |  |  | 223,777
Balance at beginning of period (in shares) at Sep. 30, 2019 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 3,850 |  |  |  |  | 3,850
Other comprehensive income (loss) |  |  |  |  |  |  |  | 9 |  |  | 9
ESOP shares committed to be released (25,458 and 12,729 shares) |  |  |  |  | 5 |  | 341 |  |  |  | 346
Balance at end of period at Dec. 31, 2019 |  |  | $ 260 |  | 114,012 | 137,409 | (12,962) | (10,737) |  |  | 227,982
Balance at end of period (in shares) at Dec. 31, 2019 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Balance at beginning of period at Jun. 30, 2020 |  |  | $ 260 |  | 113,963 | 139,734 | (12,621) | (17,370) |  |  | $ 223,966
Balance at beginning of period (in shares) at Jun. 30, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  | 25,977,679
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 1,394 |  |  |  |  | $ 1,394
Other comprehensive income (loss) |  |  |  |  |  |  |  | (72) |  |  | (72)
ESOP shares committed to be released (25,458 and 12,729 shares) |  |  |  |  | (60) |  | 171 |  |  |  | 111
Balance at end of period at Sep. 30, 2020 |  |  | $ 260 |  | 113,903 | 141,128 | (12,450) | (17,442) |  |  | 225,399
Balance at end of period (in shares) at Sep. 30, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Balance at beginning of period at Jun. 30, 2020 |  |  | $ 260 |  | 113,963 | 139,734 | (12,621) | (17,370) |  |  | $ 223,966
Balance at beginning of period (in shares) at Jun. 30, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  | 25,977,679
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  |  | $ 3,289
Other comprehensive income (loss) |  |  |  |  |  |  |  |  |  |  | (86)
Balance at end of period at Dec. 31, 2020 |  |  | $ 260 |  | 113,861 | 143,023 | (12,280) | (17,456) |  |  | $ 227,408
Balance at end of period (in shares) at Dec. 31, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  | 25,977,679
Balance at beginning of period at Sep. 30, 2020 |  |  | $ 260 |  | 113,903 | 141,128 | (12,450) | (17,442) |  |  | $ 225,399
Balance at beginning of period (in shares) at Sep. 30, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  |
Increase (Decrease) in Shareholder's Equity |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  | 1,895 |  |  |  |  | 1,895
Other comprehensive income (loss) |  |  |  |  |  |  |  | (14) |  |  | (14)
ESOP shares committed to be released (25,458 and 12,729 shares) |  |  |  |  | (42) |  | 170 |  |  |  | 128
Balance at end of period at Dec. 31, 2020 |  |  | $ 260 |  | $ 113,861 | $ 143,023 | $ (12,280) | $ (17,456) |  |  | $ 227,408
Balance at end of period (in shares) at Dec. 31, 2020 |  |  | 25,977,679 |  |  |  |  |  |  |  | 25,977,679

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