Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended
Jun. 30, 2024 USD ($) shares	Jun. 30, 2023 USD ($) shares	Mar. 31, 2024 USD ($)
Revenue from Contract with Customer, Excluding Assessed Tax	$ 33,078	$ 27,767
Customer Refund Liability, Current	$ 100		$ 100
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) \| shares	2,266,667	3,500,191
Restricted Cash, Current	$ 155		$ 155
Customer Concentration Risk [Member] \| Accounts Receivable [Member]
Number of Major Customers	1	1
Customer Concentration Risk [Member] \| Accounts Receivable [Member] \| One Customer [Member]
Concentration Risk, Percentage	29.00%	35.00%
Common Stock Warrants [Member]
Class of Warrant or Right, Outstanding (in shares) \| shares	4,949,399	0
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in shares) \| shares	1,706,292	1,670,965
Barter Transactions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 6,000	$ 4,100

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Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

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