Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Oct. 25, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	0-17196
Entity Registrant Name	MGP INGREDIENTS INC
Entity Incorporation, State or Country Code	KS
Entity Tax Identification Number	45-4082531
Entity Address, Address Line One	100 Commercial Street
Entity Address, City or Town	Atchison
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66002
City Area Code	913
Local Phone Number	367-1480
Title of each class	Common Stock, no par value
Trading Symbol	MGPI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		17,027,063
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0000835011
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3