Quarterly report pursuant to Section 13 or 15(d)

Nature of Operations, Basis of Presentation and Liquidity (Details)

v3.10.0.1
Nature of Operations, Basis of Presentation and Liquidity (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Nov. 13, 2018
Apr. 25, 2018
Feb. 21, 2017
Dec. 17, 2015
Aug. 30, 2018
Apr. 30, 2018
Jan. 19, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Sep. 27, 2018
Apr. 29, 2018
Apr. 23, 2018
Apr. 04, 2018
Dec. 31, 2017
Feb. 08, 2017
Dec. 31, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                                    
Net loss               $ (911) $ (753) $ (3,158) $ (2,976)              
Cash               459 $ 468 459 468         $ 923   $ 1,866
Working capital               1,155   1,155                
Current assets               2,313   2,313           2,869    
Current liabilities               $ 1,158   1,158           $ 431    
Net cash used in operating activities                   (2,550) (3,200)              
Aggregate gross proceeds     $ 6,000     $ 176 $ 296                      
Shares of common stock   806,452       131,225 140,295                      
Sale of stock price per share   $ 1.24         $ 2.111           $ 1.24 $ 1.38 $ 1.25   $ 4.25  
Gross proceeds from sale of stock   $ 1,000               $ 1,544                
Sale of stock, shares                   771,520                
Common stock, par value               $ 0.001   $ 0.001           $ 0.001    
Deferred offering costs     $ 125         $ 108   $ 108           $ 102    
Common stock offer shares                   1,444 $ 1,927              
Remaining deferred offering costs               96   96                
Net proceeds from private sale of stock   $ 978               978                
Unsecured promissory note principal amount         $ 750                          
Lender advanced additional of funds         $ 500             $ 250            
Note payable, description         The Note accrues interest at a rate of 5% per annum and all payments of principal, interest and other amounts under the Note are payable on August 31, 2019 or earlier under certain circumstances. The Company may prepay, in whole or in part, at any time, the principal, interest and other amounts owing under the Note, without penalty.                          
Accrued of interest expense               $ 2   $ 2                
Subsequent Events [Member]                                    
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                                    
Note payable, description The Company amended and restated the Note to increase the maximum amount that may be drawn down under the Note from $750 to $1,000. The Company expects to draw down an additional $250 under the Note in November 2018.                                  
Purchase Agreement [Member] | RENS Technology Inc. [Member]                                    
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                                    
Aggregate common shares       3,537,037                            
Payments of financing       $ 20,500                            
Common stock, par value       $ 0.001                            
Purchase Agreement [Member] | First tranche [Member] | RENS Technology Inc. [Member]                                    
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]                                    
Purchaser acquired, shares                   1,500,000                
Warrants acquired                   375,000                
Purchaser acquired, value                   $ 5,250                
Securities close date, description                   The first tranche, which closed on March 3, 2016.