Note 1 - Description of Business and Summary of Significant Accounting Policies (Details Textual) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Securities, Available-for-Sale, Allowance for Credit Loss		$ 0	$ 0
Realized Investment Gains (Losses)		0	0
Unrealized Gain (Loss) on Investments		0	0
Investment Income, Interest		1,500	5,600	$ 5,500
Unbilled Receivables, Current		44,800	23,000
Unbilled Receivables, Not Billable, Amount Expected to be Collected after Next 12 Months	[1]	$ 8,719	$ 8,983
Capitalized Computer Software, Useful Life (Year)		5 years
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares) | shares		0
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		1 year
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life (Year)		10 years
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Number of Major Customers		2	4
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage		64.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Four Customers [Member]
Concentration Risk, Percentage			57.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member]
Number of Major Customers		3	2	1
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Two Customers [Member]
Concentration Risk, Percentage			31.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Three Customers [Member]
Concentration Risk, Percentage		53.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | One Customer [Member]
Concentration Risk, Percentage				35.00%

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