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Note 7 - Debt Obligations (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2024
Jul. 02, 2023
Jun. 30, 2024
Jul. 02, 2023
Dec. 31, 2023
Oct. 01, 2023
Property, Plant and Equipment, Net $ 12,043   $ 12,043   $ 8,948  
Notes Payable 1,200 $ 1,100 1,200 $ 1,100    
Repayments of Debt 300 $ 200 500 $ 300    
Long-Term Debt, Maturity, Year One 600   600      
Long-Term Debt, Maturity, Year Two 700   700      
Long-Term Debt, Maturity, Expected Interest Payments 100   100      
Long-Term Debt $ 1,200   $ 1,200      
Minimum [Member]            
Debt Instrument, Term (Year)     2 months 1 day 1 year 4 months 28 days    
Debt Instrument, Interest Rate, Stated Percentage 3.75% 3.75% 3.75% 3.75%    
Maximum [Member]            
Debt Instrument, Term (Year)     1 year 8 months 26 days 2 years 9 months 3 days    
Debt Instrument, Interest Rate, Stated Percentage 9.89% 8.00% 9.89% 8.00%    
Weighted Average [Member]            
Debt Instrument, Term (Year)     1 year 4 months 28 days 2 years 14 days    
Debt Instrument, Interest Rate, Stated Percentage 835.00% 6.71% 835.00% 6.71%    
Fixed Assets, Net Purchased Through Financing Arrangements [Member]            
Property, Plant and Equipment, Net $ 1,200 $ 1,100 $ 1,200 $ 1,100    
Heritage Bank of Commerce [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Month-end Outstanding Amount     $ 20,000   $ 20,000  
Debt Instrument, Interest Rate, Effective Percentage 9.00%   9.00%   9.00% 9.00%
Interest Expense, Debt $ 15 $ 29 $ 56 $ 62