Note 2 - Summary of Significant Accounting Policies (Details Textual)					1 Months Ended		12 Months Ended
	Feb. 02, 2023 USD ($) $ / shares	Jan. 30, 2023 USD ($) $ / shares shares	Dec. 30, 2022 USD ($)	Dec. 29, 2022 USD ($)	Feb. 28, 2023 USD ($)	Nov. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 28, 2022 USD ($)	Dec. 31, 2020 USD ($) shares	Mar. 06, 2024 USD ($)	Nov. 09, 2022 USD ($)	Jul. 02, 2021 USD ($)	Jul. 31, 2019	May 31, 1988 USD ($)
Net Income (Loss) Attributable to Parent							$ (31,446,000)	$ (24,792,000)
Working Capital							2,200,000
Net Cash Provided by (Used in) Operating Activities							(20,924,000)	(18,599,000)
Gain (Loss) on Extinguishment of Debt							(5,331,000)	0
Proceeds from Issuance of Common Stock							$ 38,490,000	21,636,000
Number of Operating Segments							2
Revenues							$ 1,991,000	$ 1,501,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares										0
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares) | shares							5,290,000	1,814,000
Goodwill, Ending Balance							$ 5,714,000	$ 5,714,000							$ 7,006,000
Goodwill Amortized Portion										$ 3,193,000
Goodwill, Impairment Loss								0
Impairment of Intangible Assets, Finite-Lived							0
Debt Discount, Addition							700,000	2,400,000
Payments to Acquire Property, Plant, and Equipment, Total							5,787,000	3,376,000
Income (Loss) from Equity Method Investments							0	40,000
Interest Payments in Stock							1,600,000
Dividends Payable, Current							1,288,000	1,288,000
Income Taxes Paid							11,000	7,000
SoCal Hemp JV LLC [Member]
Property, Plant and Equipment, Disposals			$ 343,000
SoCal Hemp JV LLC Lease Agreement [Member]
Equity Method Investment, Ownership Percentage														50.00%
Property, Plant, and Equipment, Fair Value Disclosure								1,000,000
Equity Method Investments				$ 1,000,000
Income (Loss) from Equity Method Investments								40,000	$ (171,000)
Equity Method Investment, Realized Gain (Loss) on Disposal				$ 211,000
ATEC Acquisition [Member]
Goodwill, Ending Balance												$ 1,901,000
Goodwill, Acquired During Period						$ 1,900,000
General and Administrative Expense [Member]
Share-Based Payment Arrangement, Expense							1,500,000	1,900,000
Intersegment Eliminations [Member]
Revenues							(311,000)
Gross Profit							$ 99,000
Maximum [Member] | Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)							45 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)							15 years
Minimum [Member] | Land, Buildings and Improvements [Member]
Property, Plant and Equipment, Useful Life (Year)							5 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment, Useful Life (Year)							5 years
New Loan [Member]
Repayments of Debt	$ 15,000,000	$ 15,000,000
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares	$ 4.8
Debt Instrument, Face Amount													$ 50,000,000
First Amended Credit Agreement 1 [Member]
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares	$ 4.8
First Amended Credit Agreement 1 [Member] | Maximum [Member]
Debt Conversion, Original Debt, Amount	$ 15,000,000
Senior Secured Convertible Terms Loans [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount											$ 20,000,000
Secured Non Convertible Terms Loans [Member]
Debt Instrument, Face Amount							$ 20,000,000
Secured Non Convertible Terms Loans [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount											21,200,000
Convertible Loans [Member] | Subsequent Event [Member]
Debt Instrument, Face Amount											$ 16,000,000
SoCal Hemp JV LLC [Member]
Payments to Acquire Property, Plant, and Equipment, Total			$ 171,000
Rental Income, Nonoperating								$ 129,000
Private Placement [Member] | Direct Offering [Member]
Proceeds from Issuance of Common Stock					$ 15,000,000
Direct Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares		10,500,000
Shares Issued, Price Per Share (in dollars per share) | $ / shares		$ 3.84
Proceeds from Issuance of Common Stock, Gross		$ 40,320,000
Proceeds from Issuance of Common Stock, Net		$ 38,500,000