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Note 1 - Nature of the Business and Operations and Liquidity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			12 Months Ended
	Sep. 23, 2024	Aug. 01, 2024	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Sep. 30, 2024	Jan. 31, 2024
Cash, Cash Equivalents, and Marketable Securities			$ 79,500
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation			$ 28,285	$ 2,138
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 1	$ 0.01	$ 0.01
Shelf Registration, Maximum Amount to be Sold							$ 250,000
Megatran [Member]
Business Combination, Consideration Transferred		$ 61,400
Business Combination, Maximum Adjustment Before Indebtedness		25,000
Business Combination, Share Purchase Price Quotient Amount		31,400
Business Combination, Potential Additional Cash Payment		5,000
Payments to Acquire Businesses, Gross		$ 25,000
Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares (in shares)		1,297,600
Payment for Contingent Consideration Liability, Investing Activities	$ 3,300		$ 3,278	$ (0)
Business Combination, Contingent Consideration Arrangements, Remaining Obligation to Stockholders					$ 0	$ 0

X

- Definition

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Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination.

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Face amount or stated value per share of common stock.

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