Consolidated Statements of Changes in Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Treasury Stock [Member]
Noncontrolling Interests [Member]
Total
Beginning Balance at Sep. 30, 2016 $ 97 $ 64,552 $ 62,106 $ 2,584 $ 129,339
Beginning Balance, shares at Sep. 30, 2016 9,808,000          
Purchase of treasury shares $ (1,099) (1,099)
Purchase of treasury shares, shares       (89,000)    
Canceled treasury shares (1,099) $ 1,099
Canceled treasury shares, shares (89,000)       89,000    
Payment of dividends (1,170) (1,170)
Payments to noncontrolling interests (215) (215)
Divestiture in Drink Robust 88 88
Net income 8,259 23 8,282
Ending Balance at Sep. 30, 2017 $ 97 63,453 69,195 2,480 135,225
Ending Balance, shares at Sep. 30, 2017 9,719,000            
Payment of dividends (1,168) (1,168)
Payments to noncontrolling interests (180) (180)
Equity impact of additional investment in TEZ 759 (2,484) (1,725)
Change in marketable securities 220 220
Net income 20,879 81 20,960
Ending Balance at Sep. 30, 2018 $ 97 64,212 88,906 220 (103) 153,332
Ending Balance, shares at Sep. 30, 2018 9,719,000            
Reclassification upon adoption of ASU 2016-01 220 (220)
Purchase of treasury shares $ (2,901) (2,901)
Purchase of treasury shares, shares       (128,000)    
Canceled treasury shares $ (1) (2,900) $ 2,901
Canceled treasury shares, shares (128,000)       128,000    
Payment of dividends (1,252) (1,252)
Payments to noncontrolling interests (70) (70)
Divestiture in other entities (134) (134)
Net income 19,175 151 19,326
Ending Balance at Sep. 30, 2019 $ 96 $ 61,312 $ 107,049 $ (156) $ 168,301
Ending Balance, shares at Sep. 30, 2019 9,591