Cover - shares	6 Months Ended
	Jun. 30, 2024	Jul. 26, 2024
Cover [Abstract]
Entity Registrant Name	Atrion Corporation
Entity Central Index Key	0000701288
Document Type	10-Q
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Small Business	false
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Current Reporting Status	Yes
Document Period End Date	Jun. 30, 2024
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2024
Entity Common Stock Shares Outstanding		1,759,954
Entity File Number	001-32982
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	63-0821819
Entity Address Address Line 1	One Allentown Parkway
Entity Address City Or Town	Allen
Entity Address State Or Province	TX
Entity Address Postal Zip Code	75002
City Area Code	972
Local Phone Number	390-9800
Security 12b Title	Common stock, Par Value $0.10 per share
Trading Symbol	ATRI
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Entity Interactive Data Current	Yes
Document Transition Report	false