v3.26.1
Schedule of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Segment Reporting [Line Items]            
Revenue from external customers $ 12,885 $ 14,586 $ 24,011 $ 28,505    
Cost of Goods Sold:            
Total cost of goods sold 15,388 13,039 29,395 26,301    
Gross profit (2,503) 1,547 (5,384) 2,204    
SG&A:            
Total SG&A 3,751 4,130 8,049 8,145    
R&D 253 312 556 695    
Gain on disposal of property and equipment (1) (6)    
Loss from operations (4,389) (861) (9,756) (2,605)    
Interest income 203 301 384 636    
Interest expense (73) (124) (133) (236)    
Interest expense-financing fees (21) (21) (43) (41)    
Other income 136 155 144 188    
Unallocated corporate expenses [1] (2,118) (2,033) (4,233) (4,025)    
Loss from continuing operations before taxes (6,262) (2,583) (13,637) (6,083)    
Loss from continuing operations before taxes (6,262) (2,583) (13,637) (6,083) $ (10,665) $ (15,134)
Treatment [Member]            
Segment Reporting [Line Items]            
Revenue from external customers 8,289 11,397 16,168 20,583    
Services [Member]            
Segment Reporting [Line Items]            
Revenue from external customers 4,596 3,189 7,843 7,922    
Operating Segments [Member] | Treatment [Member]            
Segment Reporting [Line Items]            
Revenue from external customers 8,289 11,397 16,168 20,583    
Cost of Goods Sold:            
Payroll and benefits expenses 5,458 4,742 10,222 9,179    
Material and supplies expenses 1,573 1,235 2,918 2,586    
Disposal expenses 911 1,095 2,366 1,316    
Transportation expenses 436 366 825 861    
Subcontract expenses    
Other cost of goods sold [2] 2,563 2,393 5,322 4,825    
Total cost of goods sold 10,941 9,831 21,653 18,767    
Gross profit (2,652) 1,566 (5,485) 1,816    
SG&A:            
Payroll and benefits 890 942 1,768 1,815    
Other SG&A [3] 396 408 957 891    
Total SG&A 1,286 1,350 2,725 2,706    
R&D 189 232 419 523    
Gain on disposal of property and equipment   (1)   (1)    
Loss from operations (4,127) (15) (8,629) (1,412)    
Operating Segments [Member] | Services [Member]            
Segment Reporting [Line Items]            
Revenue from external customers 4,596 3,189 7,843 7,922    
Cost of Goods Sold:            
Payroll and benefits expenses 2,293 1,874 4,421 3,887    
Material and supplies expenses    
Disposal expenses    
Transportation expenses    
Subcontract expenses 665 158 670 1,066    
Other cost of goods sold [2] 1,489 1,176 2,651 2,581    
Total cost of goods sold 4,447 3,208 7,742 7,534    
Gross profit 149 (19) 101 388    
SG&A:            
Payroll and benefits 552 647 1,162 1,185    
Other SG&A [3] (145) 176 62 374    
Total SG&A 407 823 1,224 1,559    
R&D 4 4 4 27    
Gain on disposal of property and equipment     (5)    
Loss from operations $ (262) $ (846) $ (1,127) $ (1,193)    
[1] The following table reflects the unallocated corporate expenses. “Other” unallocated corporate expenses consists of repair and maintenance, depreciation and amortization, travel, public company, outside services, general and R&D expenses. (in thousands)
[2] Other cost of goods sold for each reportable segment includes:
[3] Other SG&A for each reportable segment includes: