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Selected Unaudited Quarterly Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Selected Unaudited Quarterly Information |
Schedule of selected unaudited quarterly information | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2020 |
​ |  | First |  | Second |  | Third |  | Fourth |
​ | ​ | Quarter | ​ | Quarter | ​ | Quarter | ​ | Quarter |
​ | ​ | (in thousands, except per share data) |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
Revenue | ​ | $ | 62,983 | ​ | $ | 60,808 | ​ | $ | 62,247 | ​ | $ | 59,810 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) | ​ | $ | (1,071) | ​ | $ | (2,075) | ​ | $ | (1,679) | ​ | $ | 37,440 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic and diluted net income (loss) per share | ​ | $ | (0.01) | ​ | $ | (0.02) | ​ | $ | (0.02) | ​ | $ | 0.35 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares outstanding | ​ |  | 107,269 | ​ |  | 107,287 | ​ |  | 107,328 | ​ |  | 107,328 | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2019 |
​ |  | First |  | Second |  | Third |  | Fourth |
​ | ​ | Quarter | ​ | Quarter | ​ | Quarter | ​ | Quarter |
​ | ​ | (in thousands, except per share data) |
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
Revenue | ​ | $ | 64,716 | ​ | $ | 66,813 | ​ | $ | 68,539 | ​ | $ | 68,997 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) | ​ | $ | (1,205) | ​ | $ | 1,633 | ​ | $ | 2,399 | ​ | $ | 3,648 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic and diluted net income (loss) per share | ​ | $ | (0.01) | ​ | $ | 0.02 | ​ | $ | 0.02 | ​ | $ | 0.03 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares outstanding | ​ |  | 107,231 | ​ |  | 107,231 | ​ |  | 107,231 | ​ |  | 107,240 | ​

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306 + Details
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