v3.26.1
Note 2 - Summary of Significant Accounting Policies - Segment Reporting (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Revenues $ 432 $ 143
Total cost of revenues 42 11
Acquired in-process research and development 0 119
Stock-based compensation expense 64 91
Interest income (2) (18)
Change in fair value of royalties payable due to related parties 0 (1,163)
Change in fair value of minority equity interest (2,302) 0
Change in fair value of deferred consideration 2,877 0
Income tax benefit (175) (724)
Segment net loss (1,690) (4,045)
Product [Member]    
Revenues 248 143
Total cost of revenues 31 11
Service [Member]    
Revenues 184 0
Total cost of revenues 11 0
Cardiac Electrophysiology [Member]    
Segment net loss (1,558)  
Private Aviation [Member]    
Segment net loss (132)  
Operating Segments [Member]    
Revenues 432 143
Total cost of revenues 42 11
Acquired in-process research and development 0 119
Depreciation and amortization expense 404 531
Stock-based compensation expense 64 91
Salaries and benefits expense 815 1,314
Professional fees 656 727
Research and development expense 149 103
Interest income (2) (18)
Interest expense 119 49
Change in fair value of royalties payable due to related parties 0 1,163
Change in fair value of minority equity interest 2,302 0
Change in fair value of deferred consideration (2,877) 0
Income tax benefit (175) (724)
Other segment items (1) [1] 625 822
Segment net loss (1,690) (4,045)
Operating Segments [Member] | Product [Member]    
Revenues 248 143
Total cost of revenues 31 11
Operating Segments [Member] | Product [Member] | VIVO [Member]    
Revenues 73 15
Operating Segments [Member] | Product [Member] | LockeT [Member]    
Revenues 175 128
Operating Segments [Member] | Service [Member]    
Revenues 184 0
Total cost of revenues 11 0
Operating Segments [Member] | Service [Member] | Luxe [Member]    
Revenues 42 0
Operating Segments [Member] | Service [Member] | Hops [Member]    
Revenues 142 0
Operating Segments [Member] | Cardiac Electrophysiology [Member]    
Revenues 248  
Total cost of revenues 31  
Acquired in-process research and development 0  
Depreciation and amortization expense 367  
Stock-based compensation expense 64  
Salaries and benefits expense 810  
Professional fees 514  
Research and development expense 149  
Interest income (2)  
Interest expense 103  
Change in fair value of royalties payable due to related parties 0  
Change in fair value of minority equity interest 2,302  
Change in fair value of deferred consideration (2,877)  
Income tax benefit (175)  
Other segment items (1) [1] 520  
Segment net loss (1,558)  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Product [Member]    
Revenues 248  
Total cost of revenues 31  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Product [Member] | VIVO [Member]    
Revenues 73  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Product [Member] | LockeT [Member]    
Revenues 175  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Service [Member]    
Revenues 0  
Total cost of revenues 0  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Service [Member] | Luxe [Member]    
Revenues 0  
Operating Segments [Member] | Cardiac Electrophysiology [Member] | Service [Member] | Hops [Member]    
Revenues 0  
Operating Segments [Member] | Private Aviation [Member]    
Revenues 184  
Total cost of revenues 11  
Acquired in-process research and development 0  
Depreciation and amortization expense 37  
Stock-based compensation expense 0  
Salaries and benefits expense 5  
Professional fees 142  
Research and development expense 0  
Interest income 0  
Interest expense 16  
Change in fair value of royalties payable due to related parties 0  
Change in fair value of minority equity interest 0  
Change in fair value of deferred consideration 0  
Income tax benefit 0  
Other segment items (1) [1] 105  
Segment net loss (132)  
Operating Segments [Member] | Private Aviation [Member] | Product [Member]    
Revenues 0  
Total cost of revenues 0  
Operating Segments [Member] | Private Aviation [Member] | Product [Member] | VIVO [Member]    
Revenues 0  
Operating Segments [Member] | Private Aviation [Member] | Product [Member] | LockeT [Member]    
Revenues 0  
Operating Segments [Member] | Private Aviation [Member] | Service [Member]    
Revenues 184  
Total cost of revenues 11  
Operating Segments [Member] | Private Aviation [Member] | Service [Member] | Luxe [Member]    
Revenues 42  
Operating Segments [Member] | Private Aviation [Member] | Service [Member] | Hops [Member]    
Revenues 142  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]    
Segment net loss 0 $ 0
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] | Cardiac Electrophysiology [Member]    
Segment net loss 0  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] | Private Aviation [Member]    
Segment net loss $ 0  
[1] Other segment items include other expenses, net, consulting fees, investor relations and SEC fees, insurance fees, and other selling, general, and administrative expenses. Other selling, general, and administrative expenses primarily consist of travel expenses, computer and information technology expenses, and rent expenses.