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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Schedule of Cash, Cash Equivalents, and Cash Held on Behalf of Customer

Cash and cash equivalents and cash held on behalf of customers consist of the following:

(in thousands)
  
December 31, 2023
    
December 31, 2022
  
Cash and cash equivalents
            
Cash
  
$
37,143
    
$
18,672
  
Money market funds
    
40
      
51,472
  
Cash held on behalf of customers
    
10,170
      
7,205
  
Total cash, cash equivalents, and cash held on behalf of customers
  
$
47,353
    
$
77,349
  
Schedule of Short-Term Investment

The carrying value of investment securities consist of the following:

(in thousands)
  
December 31, 2023
    
December 31, 2022
  
Short-term investments
            
Treasury bills and notes
  
$
37,194
    
$
40,290
  
Total Short-term Investments
  
$
37,194
    
$
40,290
  
Schedule of Product Warranty Liability

Activity related to warranty claims are as follows:

   
December 31, 2023
    
December 31, 2022
  
(in thousands)
            
Beginning balance
  
$
722
    
$
762
  
Adjustments to reserve
    
40
      
184
  
Warranty claims settled
    
(112
)
    
(224
)
Ending balance
  
$
650
    
$
722
  
Schedule of Reconciliation of Weighted Average Shares Outstanding for the Basic and Diluted Loss Per Share

The following is a reconciliation of the weighted average shares outstanding for the basic and diluted loss per share computations:


   
December 31,
  
(in thousands, except per share data)
  
2023
    
2022
    
2021
  
Net loss from continuing operations
  
$
(81,619
)
  
$
(80,072
)
  
$
(85,400
)
Net income from discontinued operations
    
11,867
      
10,753
      
9,601
  
Net loss
  
$
(69,752
)
  
$
(69,319
)
  
$
(75,799
)
                         
Basic:
                        
Weighted average common shares
    
27,552
      
27,152
      
25,088
  
Loss from continuing operations per common share, basic
  
$
(2.96
)
  
$
(2.95
)
  
$
(3.40
)
Income from discontinued operations per common share, basic
    
0.43
      
0.40
      
0.38
  
Loss per common share, basic
  
$
(2.53
)
  
$
(2.55
)
  
$
(3.02
)
                         
Diluted:
                        
Weighted average common shares
    
27,552
      
27,152
      
25,088
  
Loss from continuing operations per common share, diluted
  
$
(2.96
)
  
$
(2.95
)
  
$
(3.40
)
Income from discontinued operations per common share, diluted
    
0.43
      
0.40
      
0.38
  
Loss per common share, diluted
  
$
(2.53
)
  
$
(2.55
)
  
$
(3.02
)