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Note 8 - Basic and Diluted Net Income (Loss) Per Share | 12 Months Ended
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Dec. 31, 2020
Notes to Financial Statements |
Earnings Per Share [Text Block] | Note 8. Basic and Diluted N et Income ( L oss ) per S hare Basic net income (loss) per share attributable to Avalon Holdings Corporation common shareholders for the years ended December 31, 2020 and 2019 is computed by dividing the net income (loss) by the weighted average number of common shares outstanding which was 3,875,693 for 2020 and 3,875,431 for 2019. Diluted net income (loss) per share attributable to Avalon Holdings Corporation common shareholders is computed by dividing net income (loss) by the weighted average number of common shares outstanding plus any weighted common equivalent shares determined to be outstanding during the period using the treasury method. The weighted common equivalent shares included in the calculation are related to stock options granted by Avalon where the weighted average market price of Avalon's common stock for the period presented is greater than the option exercise price of the stock option. For the year ended December 31, 2020, the diluted weighted average number of shares outstanding was 3,877,853. For the year ended December 31, 2019, the diluted per share amount reported is equal to the basic per share amount because Avalon was in a net loss position and as a result, such dilution would be considered anti-dilutive. Assuming dilution, the weighted average number of common shares outstanding for the year ended December 31, 2019 was 3,903,430. The income (loss) per share calculations for the years ended December 31, 2020 and 2019 are as follows (in thousands, except per share amounts):
|  | 2020 |  |  | 2019 |
Net income (loss) attributable to Avalon Holdings Corporation common shareholders |  | $ | 14 |  |  | $ | (455 | )
Shares used in computing basic income (loss) per share |  |  | 3,876 |  |  |  | 3,875 |
Potentially dilutive shares from stock options |  |  | 2 |  |  |  | - |
Shares used in computing diluted income (loss) per share |  |  | 3,878 |  |  |  | 3,875 |
Income (loss) per share attributable to Avalon Holdings Corporation common shareholders |  |  |  |  |  |  |  |
Basic net income (loss) per share |  | $ | 0.00 |  |  | $ | (0.12 | )
Diluted net income (loss) per share |  | $ | 0.00 |  |  | $ | (0.12 | )

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