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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)
₪ / shares in Units, € in Thousands, ₪ in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Jun. 02, 2016
shares
Apr. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Mar. 31, 2018
ILS (₪)
Nov. 30, 2017
USD ($)
Nov. 30, 2017
ILS (₪)
Jul. 30, 2017
USD ($)
Jul. 30, 2017
ILS (₪)
Jun. 30, 2017
USD ($)
Jun. 30, 2017
ILS (₪)
Dec. 19, 2016
USD ($)
Dec. 19, 2016
EUR (€)
Apr. 30, 2014
USD ($)
Apr. 30, 2012
Jan. 31, 2012
USD ($)
Jan. 31, 2012
EUR (€)
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2017
EUR (€)
shares
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2017
₪ / shares
May 31, 2016
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition, Consideration transferred                                 $ 6,500            
Estimated useful life                                 10 years 10 years          
Impairment on goodwill                                            
Income tax position measurement and recognition, Likelihood of position being realized, Minimum percentage                                 50.00% 50.00%          
Inventory writedowns                                 $ 388   $ 511 $ 376      
Reverse stock spilit                                 On November 22, 2017, the Company effected a reverse stock split, due to failure to comply with the $1.00 threshold requirement for continued trading. Pursuant to the reverse split, each 5 Ordinary Shares, NIS 0.6 nominal value per share, was converted into one Ordinary Share, NIS 3.00 nominal value per share. Accordingly, 10,142,762 Ordinary Shares outstanding prior to the reverse split, were consolidated into 2,028,552 Ordinary Shares outstanding post the reverse split. On November 22, 2017, the Company effected a reverse stock split, due to failure to comply with the $1.00 threshold requirement for continued trading. Pursuant to the reverse split, each 5 Ordinary Shares, NIS 0.6 nominal value per share, was converted into one Ordinary Share, NIS 3.00 nominal value per share. Accordingly, 10,142,762 Ordinary Shares outstanding prior to the reverse split, were consolidated into 2,028,552 Ordinary Shares outstanding post the reverse split.          
Proceeds from related party debt                                 $ 1,442        
Long term bank loans                                 $ 911            
Nistec [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt                 $ 1,400                            
Interest rate                 2.60% 2.60%                          
Number of installments                 8 8                          
Loan term                 2 years 2 years                          
Nistec [Member] | Subsequent Event [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt   $ 2,500 $ 1,100                                        
Nistec [Member] | Mizrahi-Tefahot Bank [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt         $ 840                                    
Nistec [Member] | Bank HaPoalim [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from line of credit             $ 1,300                                
Period of line of credit             1 year 1 year                              
NIS [Member] | Nistec [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt | ₪                   ₪ 5,000                          
NIS [Member] | Nistec [Member] | Subsequent Event [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt | ₪       ₪ 4,000                                      
NIS [Member] | Nistec [Member] | Mizrahi-Tefahot Bank [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from related party debt | ₪           ₪ 3,000                                  
NIS [Member] | Nistec [Member] | Bank HaPoalim [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Proceeds from line of credit | ₪               ₪ 4,500                              
Mr. Yitzhak Nissan [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition, Percentage acquired 56.60%                                           50.50%
Shares issued in consideration of acquisition | shares 620,142                                            
Nistec [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition, Percentage acquired                                 50.50%            
Business acquisition, Consideration transferred                                 $ 4,200            
Shares issued in consideration of acquisition | shares                                 3,532,655 3,532,655          
Purchase price per share | ₪ / shares                                           ₪ 0.6  
Kubatronik [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition date                                 Jun. 10, 2002 Jun. 10, 2002          
Business acquisition, Percentage acquired                                 76.00%            
Business acquisition, Consideration transferred                     $ 508       $ 89   $ 2,400            
Increase due to increase in holding                                 1,000            
Cumulative impairment of goodwill                                 $ 1,000            
Remaining interest of seller, percentage                           24.00%     21.00% 21.00%          
Put option aggregate exercise price                                 $ 587     $ 587      
Call option aggregate exercise price                                 $ 623            
Call option, Exercise notice to sell remaining interest, percentage                             3.00% 3.00%              
Amount received in advance to support cash flow                     116                        
Advance amount and debt total                     $ 1,084                        
Contingent consideration parent company in net profit for 2017, percentage                     20.00% 20.00%                      
Contingent consideration parent company in net profit for 2018 and 2019, percentage                     10.00% 10.00%                      
Discount on sale, percentage                     10.00% 10.00%                      
Commission on sales, percentage                     10.00% 10.00%                      
Loss recognized on sale of shares back to seller                     $ 271                        
Kubatronik [Member] | EUR [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition, Consideration transferred | €                       € 483       € 69   € 2,600          
Increase due to increase in holding | €                                   1,100          
Put option aggregate exercise price | €                                   483          
Call option aggregate exercise price | €                                   € 513          
Amount received in advance to support cash flow | €                       110                      
Advance amount and debt total | €                       € 1,031                      
Creditor Bank One [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Minimum shareholder's equity to be maintained under debt covenants                         $ 4,500               $ 4,500    
Ratio of shareholders' equity to total assets required to be maintained under debt covenants                         17.00%               17.00%    
Debt service ratio required to be maintained under debt covenants                         1.5               1.5    
Merhav M.N.F. Ltd. [Member] | Nistec [Member]                                              
Restructuring Cost and Reserve [Line Items]                                              
Business acquisition, Percentage acquired                                 24.10%            
Business acquisition, Consideration transferred                                 $ 2,300            
Shares issued in consideration of acquisition | shares                                 1,589,440 1,589,440