Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies (Details Narrative)

v3.20.1
Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
 1 Months Ended 2 Months Ended 12 Months Ended
Sep. 12, 2019
Jul. 26, 2019
Jun. 04, 2019
Jan. 02, 2019
Oct. 02, 2018
May 14, 2018
Mar. 31, 2018
Mar. 13, 2020
Dec. 31, 2019
Dec. 31, 2018
Net loss                 $ (4,797) $ (8,652)
Net cash used in operating activities                 (6,435) (9,328)
Accumulated deficit                 (234,078) (229,281)
Proceeds from issuance of private placement             $ 1,400      
Proceeds from issuance of public offering           $ 15,000        
Reverse stock split   1 for 30 reverse stock split                
Advertising costs                
Income tax position, description                 Less than a 50%  
Right-of-use assets and assumption of operating lease liability       $ 700         $ 2,704
Operating lease liability       900         2,227  
Operating lease asset       $ 700         $ 2,341
Leasehold Improvements [Member]                    
Estimated useful lives of property and equipment                 5 years  
Accounts Receivable [Member] | One Customer [Member]                    
Concentration credit risk                 100.00%  
Revenues [Member] | One Customer [Member]                    
Concentration credit risk                   100.00%
Subsequent Event [Member] | Rights Offering [Member]                    
Proceeds from issuance of public offering               $ 9,400    
Retail Spine Business [Member]                    
Related party note payable assumed amount         $ 2,500          
Retail Spine Business [Member] | Next Four Months [Member]                    
Proceeds from sales of business         600          
Retail Spine Business [Member] | Following Eighteen Months [Member]                    
Proceeds from sales of business         $ 3,500          
Maximum [Member]                    
Estimated useful lives of property and equipment                 5 years  
Minimum [Member]                    
Estimated useful lives of property and equipment                 3 years  
ATM Equity Distribution Agreement [Member]                    
Number of stock sold during period                 527,896  
Sale of stock value                 $ 1,500  
Stock issuance costs                 200  
Additional offering value                 1,000  
ATM Equity Distribution Agreement [Member] | Maximum [Member]                    
Proceeds from issuance of public offering $ 2,500                  
Common stock offering price     $ 1,600           $ 2,500  
ATM Equity Distribution Agreement [Member] | Minimum [Member]                    
Proceeds from issuance of public offering $ 1,600