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SHAREHOLDERS' EQUITY (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of computation of basic and diluted earnings per share | Basic and diluted income (loss) per share was determined based on the following share data (in thousands):
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Weighted average basic common shares | 13,007 |  |  | 12,834 |  |  | 12,504 |
Effect of stock options | — |  |  | 747 |  |  | 1,043 |
Effect of dilutive share awards | — |  |  | 167 |  |  | 153 |
Effect of Convertible Senior Notes and warrants | — |  |  | 871 |  |  | 397 |
Weighted average diluted common shares | 13,007 |  |  | 14,619 |  |  | 14,097 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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