Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies (Details Narrative)

v3.24.1
Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 01, 2024
Feb. 02, 2024
Jan. 01, 2024
Feb. 10, 2023
Jan. 10, 2023
Dec. 20, 2022
Oct. 17, 2022
Feb. 25, 2021
Dec. 31, 2023
Dec. 31, 2022
Product Information [Line Items]                    
Reverse stock split, description           1 for 100 reverse stock split        
Net loss                 $ 8,259 $ 12,039
Cash in operating activities                 14,115 10,263
Accumulated deficit                 $ 270,714 $ 262,455
Common stock, shares issued                 5,320,671 542,145
Equity distribution impact, description         Because the Company’s public float is less than $75 million, we may not sell securities over a 12 month period in an amount greater than one-third of our public, or approximately $3.27 million, based on a share price of $2.68 on March 3, 2023.       Because the Company’s public float is less than $75 million, we may not sell securities over a 12-month period in an amount greater than one-third of our public float.  
Public float threshold                 $ 75,000  
Stock issued in public offering, units       2,150,000     4,656      
Gross proceeds from issuance             $ 4,700      
Accounts receivable                 $ 300  
Leasehold improvements useful lives                 Leasehold improvements are amortized over the shorter of their estimated useful lives or the related lease term, generally five years.  
Number of potentially dilutive securities                 700,000 700,000
Minimum [Member]                    
Product Information [Line Items]                    
Property and equipment, estimated useful lives                 3 years  
Maximum [Member]                    
Product Information [Line Items]                    
Property and equipment, estimated useful lives                 5 years  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | One Commercial Customer and Government Agencies [Member]                    
Product Information [Line Items]                    
Concentration risk percentage                 80.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | One Commercial Customer and Government Agencies [Member]                    
Product Information [Line Items]                    
Concentration risk percentage                 78.00%  
Common Stock Warrants [Member]                    
Product Information [Line Items]                    
Stock issued in public offering, units       86,000            
Gross proceeds from issuance       $ 12,000            
Common Stock and Prefunded Warrants [Member]                    
Product Information [Line Items]                    
Offering costs       4,800            
Gross proceeds from issuance       5,400            
Derivative Liabilities for Common Stock Warrants [Member]                    
Product Information [Line Items]                    
Offering costs       700            
Gross proceeds from issuance       6,700            
Agent Warrant Offering [Member]                    
Product Information [Line Items]                    
Offering costs       $ 100            
Common Stock and Series B and Series C Preferred Stock and Warrants [Member]                    
Product Information [Line Items]                    
Stock issued in public offering, units             4,656      
Gross proceeds from issuance             $ 4,700      
Subsequent Event [Member]                    
Product Information [Line Items]                    
Stock issued in public offering, units   16,000,000                
Gross proceeds from issuance $ 1,030,519,000   $ 4,000              
Subsequent Event [Member] | Common Stock Warrants [Member]                    
Product Information [Line Items]                    
Gross proceeds from issuance     $ 500              
Maxim Group LLC [Member]                    
Product Information [Line Items]                    
Sale of stock, description of transaction               (i) the sale of shares having an aggregate offering price of $15.0 million, (ii) the termination by either Maxim or the Company upon the provision of fifteen (15) days written notice, or (iii) February 25, 2025. Under the terms of the 2021 Distribution Agreement, Maxim will be entitled to a transaction fee at a fixed rate of 2.0% of the gross sales price of Shares sold under the 2021 Distribution Agreement.    
2021 ATM Equity Distribution Agreement [Member] | Maxim Group LLC [Member]                    
Product Information [Line Items]                    
Offering costs               $ 1,100    
Sale of stock, description of transaction         The Company entered into an amendment to our Equity Distribution Agreement (the “Distribution Agreement”) with Maxim, pursuant to which the expiration date of the Distribution Agreement was extended to the earlier of: (i) the sale of shares having an aggregate offering price of $15.0 million, (ii) the termination by either Maxim or the Company upon the provision of fifteen (15) days written notice, or (iii) February 25, 2024. No other changes were made to the terms of the Distribution Agreement.          
Distribution Agreement [Member]                    
Product Information [Line Items]                    
Common stock, shares issued                 1,317,749  
Distribution Agreement [Member] | Subsequent Event [Member]                    
Product Information [Line Items]                    
Common stock, shares issued 2,471,949   1,145,200              
Gross proceeds from issuance $ 70,000,000