Note 5 - Other Non-current Assets - Other Non-current Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2025	Dec. 31, 2024
Unbilled accounts receivable (1)	[1]	$ 8,719	$ 8,983
Costs capitalized to obtain revenue contracts (2)	[2]	3,395	2,385
Non-current (included in Other non-current assets)	[2]	0	617
Net investments in sales-type leases (3)	[3]	7,588	13,226
Other		1,447	4,302
Total other non-current assets		$ 21,149	$ 29,513

[1] See "Accounts Receivable" section of Note 1, "Description of Business and Summary of Significant Accounting Policies."

[2] See Note 2, "Revenue from Contracts with Customers."

[3] The Company had net investments in sales-type leases for its DirectScan system and CV system assets. The following table summarizes the components of the net investments in sales-type leases in the Consolidated Balance Sheets (in thousands): December 31, 2025 2024 Present value of lease receivables $ 10,890 $ 13,238 Less: Contract liability — (3,235 ) Net lease receivables 10,890 10,003 Unguaranteed residual assets 10,946 7,749 Total net investments in sales-type leases $ 21,836 $ 17,752 Reported as: Current (included in Prepaid expenses and other current assets) $ 14,248 $ 4,526 Non-current (included in Other non-current assets) 7,588 13,226 Total net investments in sales-type leases $ 21,836 $ 17,752