Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2011	Feb. 29, 2012	Jun. 30, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	INTELLIGENT SYSTEMS CORP
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		8,958,028
Entity Public Float			$ 5,641,365
Amendment Flag	true
Amendment Description	The consolidated financial statements, the consolidated balance sheets, the consolidated statements of operations and stockholders’ equity and comprehensive loss have been restated to correct the accounting for the allocation of net income and losses to a noncontrolling interest.
Entity Central Index Key	0000320340
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	FY