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Note 13 - Net Income Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |
Numerator: |  |  |  |  |  |  |  |
Net income attributable to SPAR Group, Inc. |  | $ | 3,367 |  |  | $ | 2,419 |
Denominator: |  |  |  |  |  |  |  |
Shares used in basic net income per share calculation |  |  | 21,110 |  |  |  | 20,916 |
Effect of diluted securities: |  |  |  |  |  |  |  |
Stock options and unvested restricted shares |  |  | 45 |  |  |  | 241 |
Shares used in diluted net income per share calculations |  |  | 21,155 |  |  |  | 21,157 |
Basic net income per common share: |  | $ | 0.16 |  |  | $ | 0.12 |
Diluted net income per common share: |  | $ | 0.16 |  |  | $ | 0.11 |

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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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