Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Schedule of Earnings Per Share, Including Dilutive Securities [Line Items]
Net income	$ 24,300	$ 30,820	$ 28,801
Less: preferred stock dividends	0	1,896	4,261
Less: preferred stock repurchase	0	0	6,091
Net income available to common stockholders	$ 24,300	$ 28,924	$ 18,449
Basic earnings per share
Basic weighted average shares outstanding	26,455,436	25,259,595	23,343,772
Basic earnings per share (in dollars per share)	$ 0.92	$ 1.15	$ 0.79
Diluted earnings per share
Convertible Preferred Stock - if converted (in shares)	98,984	2,294,205	0
Warrants (in shares)	179,105	737,183	1,280,265
Diluted weighted average shares outstanding	27,043,814	28,616,862	24,877,729
Diluted earnings per share (in dollars per share)	$ 0.90	$ 1.08	$ 0.74
Restricted stock
Diluted earnings per share
Dilutive securities related to share based compensation (in shares)	180,032	50,891	19,073
Non-qualified stock options
Diluted earnings per share
Dilutive securities related to share based compensation (in shares)	130,257	274,988	234,619
Convertible Preferred Stock
Diluted earnings per share
Anti-dilutive securities excluded from computation of earnings per share (in shares)			4,302,212

Net Income (Loss) from Continuing Operations Available Common Stockholders, Basic

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Preferred Stock Repurchase

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[Line Items] for Schedule of Earnings Per Share, Including Dilutive Securities [Table]

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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