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Note 16 - Net Income Per Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
Year ended December 31, |  |  |  |  |  |
(in thousands, except per share data) |  | 2012 |  |  | 2011 |
Basic |  |  |  |  |  |
Net income attributable to Intelligent Systems Corporation |  | $ | 534 |  |  | $ | 1,055 |
Weighted average common shares outstanding |  |  | 8,958 |  |  |  | 8,958 |
Net income per share |  | $ | 0.06 |  |  | $ | 0.11 |
Diluted |  |  |  |  |  |  |  |
Net income attributable to Intelligent Systems Corporation |  | $ | 534 |  |  | $ | 1,055 |
Weighted average common shares outstanding |  |  | 8,958 |  |  |  | 8,958 |
Effect of dilutive potential common shares: stock options |  |  | 10 |  |  |  | 19 |
Total |  |  | 8,968 |  |  |  | 8,977 |
Net income per share |  | $ | 0.06 |  |  | $ | 0.11 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration