Note 16 - Reconciliation of Basic and Diluted Income Per Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Basic
Net income (loss) attributable to Intelligent Systems Corporation	$ 18,020	$ (76)
Weighted average common shares outstanding (in shares)	8,806,875	8,958,028
Net income (loss) per share (in dollars per share)	$ 2.05	$ (0.01)
Diluted
Net income (loss) attributable to Intelligent Systems Corporation	$ 18,020	$ (76)
Weighted average common shares outstanding (in shares)	8,806,875	8,958,028
Effect of dilutive potential common shares: stock options (in shares)	105,000
Total (in shares)	8,912,109	8,958,028
Net income (loss) per share (in dollars per share)	$ 2.02	$ (0.01)