Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Warrants issued and outstanding (Details)

v3.23.1
Stockholders' Equity - Warrants issued and outstanding (Details) - USD ($)
 3 Months Ended
Dec. 28, 2022
Mar. 31, 2023
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   9 months 18 days
Weighted-average remaining contractual life, exercisable at the end of the period   9 months 18 days
Equity Purchase Agreement    
Warrants    
Proceeds from issuance of common stock $ 3,000,000  
Equity purchase agreement number of business days   5 days
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%  
Stock price multiplier (as a percent) 95.00%  
Equity purchase agreement before purchase on common stock   3 days
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  
Beneficial ownership of common stock (as a percent) 9.99%  
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