v3.25.2
Segments - Results of operations by Reporting Segment (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]            
Product sales $ 2,447   $ 2,331   $ 4,576 $ 4,460
Revenue, Product and Service [Extensible Enumeration] Product [Member]   Product [Member]   Product [Member] Product [Member]
Operating expenses:            
Cost of sales $ 927   $ 913   $ 1,919 $ 1,800
General and administrative 905   884   1,797 1,793
Selling and marketing 286   302   559 636
Research and development 162   83   349 260
Total operating expenses 2,280   2,182   4,624 4,489
Income (loss) from operations 167   149   (48) (29)
Total other expense, net (38)   (30)   (79) (66)
Net income (loss) 129 $ (256) 119 $ (214) (127) (95)
Additional Segment Information            
Interest expense (38)   (35)   (79) (71)
Depreciation and amortization 54   50   109 99
Share-based compensation expense 61   129   161 266
Therapeutic Market [Member]            
Operating expenses:            
General and administrative 567   550   1,121 1,134
Research and development 77   8   195 106
Total operating expenses 644   558   1,316 1,240
Income (loss) from operations (644)   (558)   (1,316) (1,240)
Additional Segment Information            
Interest expense (38)   (35)   (79) (71)
Depreciation and amortization 19   20   39 40
Share-based compensation expense 40   82   102 170
Biomedical Market [Member]            
Segment Reporting Information [Line Items]            
Product sales $ 2,303   $ 2,120   $ 4,298 $ 4,043
Revenue, Product and Service [Extensible Enumeration] Product [Member]   Product [Member]   Product [Member] Product [Member]
Operating expenses:            
Cost of sales $ 928   $ 814   $ 1,809 $ 1,595
General and administrative 213   204   425 396
Selling and marketing 188   179   364 360
Research and development 74   65   135 134
Total operating expenses 1,403   1,262   2,733 2,485
Income (loss) from operations 900   858   1,565 1,558
Additional Segment Information            
Depreciation and amortization 35   30   69 58
Share-based compensation expense 12   28   27 57
Anti-aging Market [Member]            
Segment Reporting Information [Line Items]            
Product sales $ 144   $ 211   $ 278 $ 417
Revenue, Product and Service [Extensible Enumeration] Product [Member]   Product [Member]   Product [Member] Product [Member]
Operating expenses:            
Cost of sales $ (1)   $ 99   $ 110 $ 205
General and administrative 125   130   251 263
Selling and marketing 98   123   195 276
Research and development 11   10   19 20
Total operating expenses 233   362   575 764
Income (loss) from operations (89)   (151)   (297) (347)
Additional Segment Information            
Depreciation and amortization         1 1
Share-based compensation expense $ 9   $ 19   $ 32 $ 39