v3.26.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2026
Aug. 14, 2026
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Securities Act File Number 001-38150  
Entity Registrant Name KALA BIO, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 27-0604595  
Entity Address, Address Line One 1167 Massachusetts Avenue  
Entity Address, City or Town Arlington  
Entity Address, State or Province MA  
Entity Address, Postal Zip Code 02476  
City Area Code 781  
Local Phone Number 996-5252  
Title of 12(b) Security Common Stock, $0.001 par value per share  
Trading Symbol KALA  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   19,339,786
Entity Central Index Key 0001479419  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Amendment Flag false