XML 61 R50.htm IDEA: XBRL DOCUMENT v3.24.3
Stockholders' Equity (Details)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Feb. 01, 2023
USD ($)
$ / shares
Sep. 30, 2024
USD ($)
shares
May 31, 2024
USD ($)
$ / shares
shares
Apr. 30, 2024
USD ($)
shares
Sep. 30, 2024
USD ($)
shares
Sep. 30, 2023
shares
Sep. 30, 2024
USD ($)
shares
Sep. 30, 2023
shares
Sep. 30, 2024
$ / shares
Dec. 31, 2023
shares
May 05, 2017
Class of Stock [Line Items]                      
Issuance of common stock pursuant to Arq Acquisition, net of offering costs | $         $ 26,659            
Number of shares agreed to purchase (in shares)   5,485,500                  
Common stock, shares issued (in shares)   46,652,061     46,652,061   46,652,061     37,791,084  
Deducting offering expenses | $   $ 26,700                  
Stock repurchased (in shares)         0 0 0 0      
Price per share (in dollars per share) | (per share) $ 4.00               $ 5.25    
Over-Allotment Option                      
Class of Stock [Line Items]                      
Number of shares agreed to purchase (in shares)   715,500                  
Original Amount                      
Class of Stock [Line Items]                      
Number of shares agreed to purchase (in shares)   4,770,000                  
Additional Option                      
Class of Stock [Line Items]                      
Number of shares agreed to purchase (in shares)   715,500                  
Purchase period   30 days                  
Maximum                      
Class of Stock [Line Items]                      
Requirement to own shares outstanding (as percent)                     4.99%
Common Stock                      
Class of Stock [Line Items]                      
Issuance of common stock pursuant to Arq Acquisition, net of offering costs | $         $ 5            
Issuance of common stock pursuant to Arq Acquisition, net of offering costs (in shares)         5,485,500            
Deducting offering expenses | $ $ 15,400                    
Remaining authorized amount | $   $ 7,000     $ 7,000   $ 7,000        
Securities Purchase Agreement                      
Class of Stock [Line Items]                      
Number of shares agreed to purchase (in shares)     2,142,858                
Share price (amount per shares) | $ / shares     $ 7.00                
Net proceeds from common stock issued | $     $ 15,000                
Common Stock                      
Class of Stock [Line Items]                      
Issuance of common stock pursuant to Arq Acquisition, net of offering costs | $       $ 800              
Issuance of common stock pursuant to Arq Acquisition, net of offering costs (in shares)       422,221