v3.26.3
Significant Accounting Policies - Narrative (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
customer
Jun. 30, 2026
USD ($)
product
Jun. 30, 2025
USD ($)
customer
shares
Jun. 30, 2026
USD ($)
segment
item
customer
product
shares
Dec. 31, 2024
USD ($)
customer
$ / shares
shares
Significant Accounting Policies          
Provision for inventory $ 0 $ 562,000 $ 0 $ 562,000  
Prepaid expenses 887,000 1,778,000 887,000 1,778,000  
Tariff refunds 0 1,549,000 0 1,549,000  
Impairment of long-lived assets     0 $ 0 $ 0
Number of reporting unit | item       1  
Goodwill impairment   11,122,000   $ 11,122,000  
Goodwill 11,128,000 0 11,128,000 0 10,705,000
Intangible asset impairment   $ 2,043,000   $ 2,043,000  
Impairment of indefinite-lived intangible asset     0   0
Number of operating segments | segment       1  
Number of products | product   1   1  
Costs of out-bound freight     1,913,000 $ 2,983,000 2,534,000
Advertising expense     36,000 50,000 $ 43,000
Interest expense $ 300,000 $ 13,000 $ 300,000 $ 13,000  
Issuance of common stock upon vesting of restricted stock units, shares | shares     0 0 27,000
Grant date fair value | $ / shares         $ 5.64
Vesting period       3 years  
Stock-based compensation expense     $ 39,000 $ 39,000 $ 60,000
Antidilutive securities | shares     1,000 56,000  
Other assets          
Significant Accounting Policies          
Ex-force bulbs   257,000   $ 257,000  
Prepaid expenses and other current assets          
Significant Accounting Policies          
Ex-force bulbs   $ 679,000   679,000  
Supplier          
Significant Accounting Policies          
Cost of goods sold     $ 814,000 $ 0  
Customer concentration risk | Revenue          
Significant Accounting Policies          
Number of customers | customer     4 4  
Customer concentration risk | Revenue | Customer one          
Significant Accounting Policies          
Concentration risk, percentage     17.00% 20.00%  
Customer concentration risk | Revenue | Customer two          
Significant Accounting Policies          
Concentration risk, percentage     16.00% 18.00%  
Customer concentration risk | Revenue | Customer three          
Significant Accounting Policies          
Concentration risk, percentage     12.00% 11.00%  
Customer concentration risk | Revenue | Customer four          
Significant Accounting Policies          
Concentration risk, percentage     11.00% 10.00%  
Customer concentration risk | Accounts receivable          
Significant Accounting Policies          
Number of customers | customer 2     3 3
Customer concentration risk | Accounts receivable | Customer one          
Significant Accounting Policies          
Concentration risk, percentage     26.00% 26.00% 34.00%
Customer concentration risk | Accounts receivable | Customer two          
Significant Accounting Policies          
Concentration risk, percentage     10.00% 16.00% 20.00%
Customer concentration risk | Accounts receivable | Customer three          
Significant Accounting Policies          
Concentration risk, percentage       10.00% 11.00%
Customer concentration risk | Accounts receivable | One different customer          
Significant Accounting Policies          
Number of customers | customer     1    
Concentration risk, percentage     15.00%    
Geographic concentration risk | Revenue | U.S          
Significant Accounting Policies          
Concentration risk, percentage       95.00%