Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Jul. 31, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Registrant Name	AMERICAN BIO MEDICA CORP
Entity Central Index Key	0000896747
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Is Entity's Reporting Status Current?	No
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity File Number	0-28666
Entity Incorporation State Country Code	NY
Entity Common Stock, Shares Outstanding		35,953,476