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Share-Based Compensation - Performance Based Incentive Plans (Details) - Performance Based Incentive Plan
6 Months Ended
Mar. 13, 2019
$ / shares
shares
Units  
Beginning balance (in shares) | shares 373,294
Forfeited (in shares) | shares (19,864)
Ending balance (in shares) | shares 353,430
Weighted Average Fair Value  
Beginning balance (in dollars per share) | $ / shares $ 3.68
Forfeited (in dollars per share) | $ / shares 3.68
Ending balance (in dollars per share) | $ / shares $ 3.68