{"cik":1337298,"taxonomy":"us-gaap","tag":"OperatingLeaseLiability","label":"Operating Lease, Liability","description":"Present value of lessee's discounted obligation for lease payments from operating lease.","entityName":"FUTUREFUEL CORP.","units":{"USD":[{"end":"2019-03-31","val":1945000,"accn":"0001437749-19-009494","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-10","frame":"CY2019Q1I"},{"end":"2019-06-30","val":1817000,"accn":"0001437749-19-016239","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-09","frame":"CY2019Q2I"},{"end":"2019-09-30","val":1688000,"accn":"0001437749-19-022190","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08","frame":"CY2019Q3I"},{"end":"2026-06-30","val":324000,"accn":"0001437749-26-026784","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-10","frame":"CY2026Q2I"}]}}