Quarterly report pursuant to Section 13 or 15(d) 09-30-2018

Organization and Summary of Significant Accounting Policies (Details Narrative)

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Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May 14, 2018
Nov. 10, 2017
Sep. 30, 2018
Mar. 31, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Net loss     $ 3,247   $ 2,069 $ 8,958 $ 4,284  
Net cash used in operating activities           7,953 $ 4,396  
Accumulated deficit     $ 229,587     229,587   $ 220,629
Proceeds from issuance of private placement       $ 1,400        
Proceeds from issuance of public offering $ 15,000              
Reverse stock split   1 for 12 reverse stock split.            
October 1, 2018 [Member] | Retail Spine Business [Member]                
Related party note payable assumed amount           2,500    
October 1, 2018 [Member] | Retail Spine Business [Member] | Next Eighteen Months [Member]                
Proceeds from sales of business           2,500    
October 1, 2018 [Member] | Retail Spine Business [Member] | Following Eighteen Months [Member]                
Proceeds from sales of business           $ 3,500