Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Aug. 16, 2021
Document Information Line Items
Entity Registrant Name	iSign Solutions Inc.
Trading Symbol	ISIGN
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		6,321,980
Amendment Flag	false
Entity Central Index Key	0000727634
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-19301
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-2790442
Entity Address, Address Line One	2033 Gateway Place
Entity Address, Address Line Two	Suite 659
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95110
City Area Code	650
Local Phone Number	802-7888
Title of 12(b) Security	Common Stock
Security Exchange Name	NYSE
Entity Interactive Data Current	Yes