Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Warrants issued and outstanding (Details)

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Stockholders' Equity - Warrants issued and outstanding (Details) - USD ($)
 3 Months Ended
Dec. 28, 2022
Dec. 31, 2022
Warrants    
Warrants, outstanding at the beginning of the period   180,000
Warrants, outstanding at the end of the period   180,000
Warrants, Exercisable at the end of the period   180,000
Weighted-average exercise price, outstanding at the beginning of the period   $ 7.80
Weighted-average exercise price, outstanding at the end of the period   7.80
Weighted-average exercise price, exercisable at the end of the period   $ 7.80
Weighted-average remaining contractual life, outstanding at the end of the period   1 year
Weighted-average remaining contractual life, exercisable at the end of the period   1 year
Equity Purchase Agreement    
Warrants    
Proceeds from issuance of common stock $ 3,000,000  
Equity purchase agreement number of business days   5 years
Equity Purchase Agreement | Common Stock    
Warrants    
Stock issued during period value new issues $ 500,000  
Stock issued during period, shares, new issues 146,699  
Percentage of common stock held in investment 0.50%  
Equity purchase agreement before purchase on common stock   3 years
Equity Purchase Agreement | Maximum    
Warrants    
Proceeds from issuance of common stock $ 10,000,000  
Equity Purchase Agreement | Maximum | Common Stock    
Warrants    
Stock issued during period value new issues $ 1,000,000  
July 6, 2023    
Warrants    
Exercise price of warrants (in dollars per share)   $ 8.73
Warrants, outstanding at the end of the period   105,000
September 20, 2024    
Warrants    
Exercise price of warrants (in dollars per share)   $ 6.50
Warrants, outstanding at the end of the period   75,000