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Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Period of Adoption, Adjustment [Member] | Common Stock [Member] | Capital in Excess of Par Value [Member] | Retained Earnings [Member] | Retained Earnings [Member] Period of Adoption, Adjustment [Member] | Accumulated Other Comprehensive Loss [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Mar. 31, 2018 | $ 103,349 | $ (1,022) | $ 1,058 | $ 23,826 | $ 99,011 | $ (1,022) | $ (8,250) | $ (12,296)
Beginning balance, shares at Mar. 31, 2018 |  |  | 10,579 |  |  |  |  |
Comprehensive (loss) income | (891) |  |  |  | (308) |  | (583) |
Issuance of shares | 307 |  | $ 7 | 300 |  |  |  |
Issuance of shares, shares |  |  | 72 |  |  |  |  |
Forfeiture of shares, shares |  |  | (1) |  |  |  |  |
Dividends | (3,834) |  |  |  | (3,834) |  |  |
Recognition of equity-based compensation expense | 1,069 |  |  | 1,069 |  |  |  |
Purchase of treasury stock | (146) |  |  |  |  |  |  | (146)
Issuance of treasury stock | 134 |  |  | 82 |  |  |  | 52
Ending Balance at Mar. 31, 2019 | 98,966 | $ (80) | $ 1,065 | 25,277 | 93,847 | $ (80) | (8,833) | (12,390)
Ending Balance, shares at Mar. 31, 2019 |  |  | 10,650 |  |  |  |  |
Comprehensive (loss) income | 1,149 |  |  |  | 1,872 |  | (723) |
Issuance of shares | 24 |  | $ 8 | 16 |  |  |  |
Issuance of shares, shares |  |  | 84 |  |  |  |  |
Forfeiture of shares |  |  | $ (4) | 4 |  |  |  |
Forfeiture of shares, shares |  |  | (45) |  |  |  |  |
Dividends | (4,250) |  |  |  | (4,250) |  |  |
Recognition of equity-based compensation expense | 975 |  |  | 975 |  |  |  |
Purchase of treasury stock | (230) |  |  |  |  |  |  | (230)
Issuance of treasury stock | 170 |  |  | 89 |  |  |  | 81
Ending Balance at Mar. 31, 2020 | 96,724 |  | $ 1,069 | 26,361 | 91,389 |  | (9,556) | (12,539)
Ending Balance, shares at Mar. 31, 2020 |  |  | 10,689 |  |  |  |  |
Comprehensive (loss) income | 4,533 |  |  |  | 2,374 |  | 2,159 |
Issuance of shares |  |  | $ 11 | (11) |  |  |  |
Issuance of shares, shares |  |  | 113 |  |  |  |  |
Forfeiture of shares |  |  | $ (5) | 5 |  |  |  |
Forfeiture of shares, shares |  |  | (54) |  |  |  |  |
Dividends | (4,391) |  |  |  | (4,391) |  |  |
Recognition of equity-based compensation expense | 864 |  |  | 864 |  |  |  |
Purchase of treasury stock | (23) |  |  |  |  |  |  | (23)
Issuance of treasury stock | 222 |  |  | 53 |  |  |  | 169
Ending Balance at Mar. 31, 2021 | $ 97,929 |  | $ 1,075 | $ 27,272 | $ 89,372 |  | $ (7,397) | $ (12,393)
Ending Balance, shares at Mar. 31, 2021 |  |  | 10,748 |  |  |  |  |

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