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Revenue (Tables)
 6 Months Ended
Jun. 30, 2023
Revenue from Contract with Customer [Abstract]  
Schedule of Disaggregation of Revenue

 

                             \ 
Revenue by Contract Type  Three Months Ended   Three Months Ended 
(In thousands)  June 30, 2023   June 30, 2022 
   Treatment   Services   Total   Treatment   Services   Total 
Fixed price  $12,834   $11,161   $23,995   $8,393   $7,916   $16,309 
Time and materials   —    1,037    1,037    —    3,146    3,146 
Total  $12,834   $12,198   $25,032   $8,393   $11,062   $19,455 

 

 

                               
Revenue by Contract Type  Six Months Ended   Six Months Ended 
(In thousands)  June 30, 2023   June 30, 2022 
   Treatment   Services   Total   Treatment   Services   Total 
Fixed price  $22,428   $19,808   $42,236   $15,872   $13,677   $29,549 
Time and materials   —    2,903    2,903    —    5,821    5,821 
Total  $22,428   $22,711   $45,139   $15,872   $19,498   $35,370 

 

                               
 Revenue by generator Three Months Ended   Three Months Ended 
 (In thousands) June 30, 2023   June 30, 2022 
   Treatment   Services   Total   Treatment   Services   Total 
Domestic government  $9,808   $11,441   $21,249   $6,243   $10,649   $16,892 
Domestic commercial   2,269    742    3,011    1,803    384    2,187 
Foreign government   657    (7)   650    153    8    161 
Foreign commercial   100    22    122    194    21    215 
Total  $12,834   $12,198   $25,032   $8,393   $11,062   $19,455 

 

                               
Revenue by generator  Six Months Ended   Six Months Ended 
 (In thousands)   June 30, 2023   June 30, 2022 
   Treatment   Services   Total   Treatment   Services   Total 
Domestic government  $17,065   $21,159   $38,224   $12,058   $18,894   $30,952 
Domestic commercial   4,475    1,339    5,814    3,239    546    3,785 
Foreign government   752    170    922    245    14    259 
Foreign commercial   136    43    179    330    44    374 
Total  $22,428   $22,711   $45,139   $15,872   $19,498   $35,370 
Schedule of Contract Liabilities

The timing of revenue recognition and billings results in unbilled receivables (contract assets). The Company’s contract liabilities consist of deferred revenues which represent payment from customers in advance of the completion of our performance obligation. The following table represents changes in our contract asset and contract liabilities balances:

 

           Year-to-date    Year-to-date  
(In thousands)  June 30, 2023   December 31, 2022   Change ($)   Change (%) 
Contract assets                    
Unbilled receivables - current  $7,121   $6,062   $1,059    17.5%
                     
Contract liabilities                    
Deferred revenue  $4,852   $4,813   $39    0.8%