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Note 2 - Summary of Significant Accounting Policies (Details Textual)
 1 Months Ended 12 Months Ended
Feb. 02, 2023
USD ($)
Jan. 30, 2023
USD ($)
$ / shares
shares
Dec. 30, 2022
USD ($)
Dec. 29, 2022
USD ($)
Nov. 14, 2022
USD ($)
$ / shares
shares
Mar. 23, 2022
USD ($)
$ / shares
shares
Jul. 02, 2021
USD ($)
$ / shares
Jun. 30, 2021
USD ($)
Jun. 29, 2021
$ / shares
shares
Jun. 07, 2021
USD ($)
$ / shares
shares
Nov. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
shares
Dec. 28, 2022
USD ($)
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Nov. 09, 2022
USD ($)
Jul. 01, 2021
$ / shares
Jul. 31, 2019
May 31, 1988
USD ($)
Net Income (Loss) Attributable to Parent, Total                       $ (24,792,000)   $ (31,249,000)          
Working Capital                       (6,800,000)              
Net Cash Provided by (Used in) Operating Activities, Total                       (18,599,000)   (15,274,000)          
Proceeds from Issuance of Common Stock                       21,636,000   32,459,000          
Payments to Acquire Property, Plant, and Equipment, Total                       3,376,000   22,908,000          
Repayments of Long-term Debt, Total                       $ 170,000   $ 77,595,000          
Deposits, Segregated Account, Pre-fund Eight Quarterly Dividend Payments             $ 10,200,000                        
Number of Operating Segments                       2              
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares                             0        
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total (in shares) | shares                       1,814,000   3,000,000          
Goodwill, Ending Balance                       $ 5,714,000   $ 3,813,000         $ 7,006,000
Goodwill Amortized Portion                             $ 3,193,000        
Goodwill, Impairment Loss                       0              
Impairment of Intangible Assets, Finite-Lived                       0              
Debt Issuance Costs, Net, Total                       0   2,300,000          
Debt Discount, Addition                       2,400,000   1,100,000          
Equity Method Investments                       0   976,000          
Income (Loss) from Equity Method Investments                       40,000   (942,000)          
Interest Payments in Stock                       3,500,000              
Dividends Payable, Current                       1,288,000   1,288,000          
Accrual for Property and Equipment Received, Current                       1,500,000              
Income Taxes Paid                       7,000   10,000          
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                       $ 1,900,000   $ 4,700,000          
Subsequent Event [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   $ 38,500,000                                  
Proceeds from Issuance of Common Stock, Gross   40,320,000                                  
New Loan [Member]                                      
Debt Instrument, Face Amount             50,000,000                        
New Loan [Member] | Subsequent Event [Member]                                      
Repayments of Debt $ 15,000,000 $ 15,000,000                                  
Senior Secured Debt [Member]                                      
Repayments of Long-term Debt, Total             $ 77,500,000                        
Depository Shares [Member]                                      
Stock Issued During Period, Shares, New Issues (in shares) | shares                 2,000,000                    
Preferred Stock, Shares Per Depository Share (in dollars per share) | $ / shares                 $ 0.001                    
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares             $ 25.00   25.00               $ 25.00    
Series A Preferred Stock [Member]                                      
Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ / shares                 $ 25,000.00                    
Proceeds From Issuance of Preferred Stock, Net of Issuance Costs             $ 54,000,000                        
Pipelines [Member]                                      
Payments to Acquire Property, Plant, and Equipment, Total               $ 19,000,000                      
Land, Buildings and Improvements [Member] | Maximum [Member]                                      
Property, Plant and Equipment, Useful Life (Year)                       45 years              
Land, Buildings and Improvements [Member] | Minimum [Member]                                      
Property, Plant and Equipment, Useful Life (Year)                       5 years              
Machinery and Equipment [Member] | Maximum [Member]                                      
Property, Plant and Equipment, Useful Life (Year)                       15 years              
Machinery and Equipment [Member] | Minimum [Member]                                      
Property, Plant and Equipment, Useful Life (Year)                       5 years              
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]                                      
Stock Issued During Period, Shares, New Issues (in shares) | shares                   1,219,512                  
Shares Issued, Price Per Share (in dollars per share) | $ / shares                   $ 12.30                  
Proceeds from Issuance of Common Stock                   $ 15,000,000                  
Proceeds from Issuance of Common Stock, Net                   $ 14,100,000                  
Over-Allotment Option [Member] | Depository Shares [Member] | Maximum [Member]                                      
Stock Issued During Period, Shares, New Issues (in shares) | shares                 300,000                    
Direct Offering [Member]                                      
Stock Issued During Period, Shares, New Issues (in shares) | shares         5,000,000 6,857,140                          
Shares Issued, Price Per Share (in dollars per share) | $ / shares         $ 2.00 $ 1.75                          
Proceeds from Issuance of Common Stock, Net         $ 9,900,000 $ 11,700,000                          
Deposits, Segregated Account, Pre-fund Eight Quarterly Dividend Payments             $ 10,200,000                        
Proceeds from Issuance of Common Stock, Gross         $ 10,000,000 $ 12,000,000                          
Direct Offering [Member] | Subsequent Event [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, Net   $ 38,500,000                                  
Proceeds from Issuance of Common Stock, Gross   $ 40,320,000