v3.26.1
Cover Page - shares
 6 Months Ended
Jun. 28, 2026
Jul. 30, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 28, 2026  
Document Transition Report false  
Entity File Number 001-40345  
Entity Registrant Name SkyWater Technology, LLC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 85-2992192  
Entity Address, Address Line One 2401 East 86th Street  
Entity Address, City or Town Bloomington  
Entity Address, State or Province MN  
Entity Address, Postal Zip Code 55425  
City Area Code 952  
Local Phone Number 851-5200  
Title of 12(b) Security Common stock, par value $0.01 per share  
Trading Symbol SKYT  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   49,423,188
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0001819974  
Current Fiscal Year End Date --12-27  
Amendment Flag false