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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Shares outstanding | 18,974,703 |
Common stock options exercised, shares | 820 |
Issuance of shares for Employee Stock Purchase Plan, shares | 8,425 | 0
Shares outstanding | 19,034,870 |
Common Stock [Member] |  |
Shares outstanding | 18,974,703 | 18,926,810
Restricted stock units issued, shares | 267,148 | 150,084
Restricted stock units/awards repurchased on vesting to pay taxes, shares | (64,653) | (37,106)
Cash dividends declared on common stock, per share | $ 0.05 | $ 0.05
Share repurchase, share | (158,033) | (220,222)
Common stock options exercised, shares | 820 | 5,600
Common stock options exercised, used to exercise, shares | 62 |
Common stock options exercised, net of shares used to exercise, shares | 758 |
Exercise of warrants, shares | 20,000 | 20,000
Exercise of warrants, used to exercise, shares | 13,478 | 13,469
Exercise of warrants, net of shares used to exercise, shares | 6,522 | 6,531
Issuance of shares for Employee Stock Purchase Plan, shares | 8,425 |
Issuance of common stock for acquisition, shares |  | 20,826
Shares outstanding | 19,034,870 | 18,852,523

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