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Stockholders' equity (Tables) | 3 Months Ended
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Mar. 31, 2021
Equity [Abstract] |
Schedule of Changes in Stockholders' Equity | Changes in equity are as follows:
| Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Treasury Common Stock |  | AOCI
Balance, December 31, 2020 | $ | 1,741 |  |  | $ | 2,333 |  |  | $ | 42,051 |  |  | $ | (36,578) |  |  | $ | (360) |
2021 |  |  |  |  |  |  |  |  |
Net income | — |  |  | — |  |  | 1,753 |  |  | — |  |  | — |
Dividends declared and paid ($1.02 per share) | — |  |  | — |  |  | (940) |  |  | — |  |  | — |
Common stock issued for stock-based awards | — |  |  | (3) |  |  | — |  |  | 199 |  |  | — |
Stock repurchases | — |  |  | — |  |  | — |  |  | (100) |  |  | — |
Stock compensation | — |  |  | 61 |  |  | — |  |  | — |  |  | — |
Other comprehensive income (loss), net of taxes | — |  |  | — |  |  | — |  |  | — |  |  | 13 |
Dividend equivalents on RSUs | — |  |  | — |  |  | (4) |  |  | — |  |  | — |
Balance, March 31, 2021 | $ | 1,741 |  |  | $ | 2,391 |  |  | $ | 42,860 |  |  | $ | (36,479) |  |  | $ | (347) |
| Common Stock |  | Paid-in Capital |  | Retained Earnings |  | Treasury Common Stock |  | AOCI
Balance, December 31, 2019 | $ | 1,741 |  |  | $ | 2,110 |  |  | $ | 39,898 |  |  | $ | (34,495) |  |  | $ | (347) |
2020 |  |  |  |  |  |  |  |  |
Net income | — |  |  | — |  |  | 1,174 |  |  | — |  |  | — |
Dividends declared and paid ($0.90 per share) | — |  |  | — |  |  | (841) |  |  | — |  |  | — |
Common stock issued for stock-based awards | — |  |  | (77) |  |  | — |  |  | 223 |  |  | — |
Stock repurchases | — |  |  | — |  |  | — |  |  | (1,730) |  |  | — |
Stock compensation | — |  |  | 63 |  |  | — |  |  | — |  |  | — |
Other comprehensive income (loss), net of taxes | — |  |  | — |  |  | — |  |  | — |  |  | 19 |
Dividend equivalents on RSUs | — |  |  | — |  |  | (4) |  |  | — |  |  | — |
Balance, March 31, 2020 | $ | 1,741 |  |  | $ | 2,096 |  |  | $ | 40,227 |  |  | $ | (36,002) |  |  | $ | (328) |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
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