Note 3 - Discontinued Operations - Schedule of Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 23, 2023
Loss from discontinued operations	$ (9,009)	$ (1,198)
Depreciation included in cost of goods sold	929	866
Capital expenditures	689	225
Stabilized Rice Bran (SRB) [Member] | Discontinued Operations, Disposed of by Sale [Member]
Inventories		1,913	$ 2,252
Other current assets		311	185
Property and equipment		8,187	7,710
Operating lease right of use assets		1,701	1,566
Total assets		12,112	11,713
Accrued expenses		236	9
Operating lease liabilities		1,841	1,668
Finance lease liabilities		17	12
Long-term debt		468	14
Total liabilities		2,562	1,703
Net assets sold			$ 10,010
Revenues	6,857	14,970
Cost of goods sold	(6,796)	(14,966)
Selling, general and administrative expenses	(457)	(1,293)
Interest expense	(28)	(56)
Loss from operations of discontinued operations	(424)	(1,345)
Gain (loss) on sale	(8,585)	147
Loss from discontinued operations	(9,009)	(1,198)
Depreciation included in cost of goods sold	646	1,238
Capital expenditures	$ 111	$ 964