Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details Narrative)

v3.19.3
Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 12, 2019
Jul. 26, 2019
Jun. 04, 2019
Jan. 02, 2019
May 14, 2018
Nov. 30, 2019
Nov. 30, 2019
Mar. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Reverse stock split, description   1 for 30 reverse stock split                      
Loss from continuing operations                 $ (1,446) $ (2,967) $ (3,805) $ (8,634)  
Net cash used in operating activities                     (4,322) (7,746)  
Accumulated deficit                 (233,086)   (233,086)   $ (229,281)
Proceeds from issuance of private placement               $ 1,400          
Proceeds from issuance of public offering         $ 15,000                
Common stock issued for cash                     $ 1,285    
Common stock issued for cash, shares                     457,878    
Operating lease asset       $ 700         2,440   $ 2,440  
Operating lease liability       900         2,343   2,343    
Right-of-use assets and assumption of operating lease liability       $ 700             2,704  
Increase in research and development expenses                         $ 400,000
Retail Spine Business [Member]                          
Related party note payable assumed amount                 $ 2,500   2,500    
Subsequent Event [Member] | Retail Spine Business [Member] | Next Seven Months [Member]                          
Proceeds from sales of business           $ 1,000              
Subsequent Event [Member] | Retail Spine Business [Member] | Following Eighteen Months [Member]                          
Proceeds from sales of business             $ 3,500            
Preferred Stock [Member]                          
Common stock issued for cash                        
Common stock issued for cash, shares                        
Issuance of common stock due to conversion of preferred stock, shares                     (3,825) (10,598)  
Common Stock [Member]                          
Common stock issued for cash                     $ 5    
Common stock issued for cash, shares                     457,878    
Issuance of common stock due to conversion of preferred stock, shares                     1,143,784 544,911  
Equity Distribution Agreement [Member]                          
Common stock offering price, description (i) the sale of Shares having an aggregate offering price of $2.5 million, (ii) the termination of the Distribution Agreement by either Maxim or the Company upon the provision of fifteen (15) days written notice, or (iii) September 12, 2020.                        
Percentage of maximum transaction fee     4.25%                    
Additional common stock offering price $ 1,200                        
Equity Distribution Agreement [Member] | Maximum [Member]                          
Common stock offering price 2,500   $ 1,600                    
Equity Distribution Agreement [Member] | Minimum [Member]                          
Common stock offering price $ 1,600