Note 16 - Net Income Per Share (Detail) - Reconciliation of Basic and Diluted Income Per Share (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Basic
Net income attributable to Intelligent Systems Corporation (in Dollars)	$ 534	$ 1,055
Weighted average common shares outstanding	8,958,028	8,958,028
Effect of dilutive potential common shares: stock options	10,000	19,000
Total	8,967,679	8,977,196
Net income per share (in Dollars per share)	$ 0.06	$ 0.11
Net income per share (in Dollars per share)	$ 0.06	$ 0.11