Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.23.1
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended
Jan. 27, 2023
Oct. 31, 2022
Dec. 31, 2021
Nov. 30, 2021
Sep. 30, 2016
Subsequent Events          
Shares of common stock sold   545,454     250,000
Exercisable period of warrants   5 years      
Net proceeds from this underwritten public offering     $ 1,800 $ 2,600  
Subsequent events | PIPE Warrants          
Subsequent Events          
Warrants to purchase shares of common stock 1        
Subsequent events | January 2023 Private Offering          
Subsequent Events          
Shares of common stock sold 448,000        
Net proceeds from this underwritten public offering $ 3,250        
Subsequent events | January 2023 Private Offering | Pre-funded warrants          
Subsequent Events          
Price per share $ 1.55        
Warrants to purchase shares of common stock 1,492,299        
Price per warrant $ 1.549        
Exercise price of warrants 0.001        
Subsequent events | January 2023 Private Offering | PIPE Warrants          
Subsequent Events          
Price per share 1.55        
Price per warrant $ 0.125        
Number of shares per warrant 1,940,299        
Exercisable period of warrants 6 months        
Expiration term of warrant 3 years