Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Summary of Estimated Useful Lives/Property and Equipment

Depreciation is computed using the straight-line method over the following estimated useful lives (in years):

Asset	Minimum		Maximum
Buildings			40
Research and development equipment	3	to	7
Office equipment	2	to	10
Furniture and fixtures	2	to	10
Vehicles	5	to	10

The Company’s property and equipment consisted of the following (in thousands):

	December 31, 2025			December 31, 2024
Building	$	1,770		$	1,770
Land		917			917
Equipment		15,457			11,423
Leasehold improvements		3,864			3,570
Construction in progress1		60,793			42,601
Property and equipment		82,801			60,281
Less accumulated depreciation		(6,204	)		(2,960	)
Property and equipment, net	$	76,597		$	57,321

1.Property and equipment not placed in service are items that meet the capitalization threshold, or which management believes will meet the threshold at the time of completion and which have yet to be placed into service as of the date of the balance sheets and, therefore, no depreciation expense has been recognized.

Schedule of Securities Not Considered in Calculation of Diluted Weighted Average Shares

Securities not considered in the calculation of diluted loss per share, but that could be dilutive in the future, are as follows:

	December 31, 2025		December 31, 2024
Common stock warrants		338,715		415,779
Common stock options		10,522,787		7,352,501
Total potential dilutive securities		10,861,502		7,768,280