Quarterly report pursuant to Section 13 or 15(d)

Notes Receivable (Details Textual)

v3.10.0.1
Notes Receivable (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 16, 2018
Apr. 25, 2017
Feb. 27, 2018
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Jun. 08, 2018
Mar. 09, 2018
Mar. 02, 2018
Dec. 22, 2017
Notes Receivable (Textual)                        
Notes bear interest rates, description           Loans to employees bore interest at rates between 2% and 3% per annum.            
Loans receivable, description           This note is convertible into shares of common stock of Spectrum at a conversion price per share equal to 75% of the lowest VWAP during the fifteen (15) trading days immediately prior to the conversion date.            
ADEX [Member]                        
Notes Receivable (Textual)                        
Notes bear interest rates, description     The note is convertible into shares of common stock of Spectrum at a conversion price per share equal to 75% of the lowest VWAP during the fifteen (15) trading days immediately prior to the conversion date. The conversion price has a floor of $0.005 per share.                  
Convertible promissory note, due date     Mar. 27, 2019                  
Loans receivable, description     $2,500 in cash was received at closing, with $500 to be retained by the buyer for 90 days, of which $250 has been received. The remaining $250 is now due on demand. $1,000 of the $2,500 in cash received at closing was applied to the repayment of the Company's indebtedness to JGB Concord, with an additional $900 in cash placed in an escrow account controlled by JGB Concord, to be released to the Company if certain conditions are met.                  
Sold entities for cash     $ 3,000                  
Spectrum Global Solutions, Inc. ("Spectrum") April 25, 2017 convertible note receivable [Member]                        
Notes Receivable (Textual)                        
Total fair value   $ 2,231   $ 132   $ 132   $ 234        
Accrues interest rate percentage   8.00%                    
Change in fair value gain             $ 226          
Convertible note and determined the fair value   $ 1,057   1,684   $ 1,684   1,650        
Loans receivable, description           The conversion price per share is equal to 75% of the lowest VWAP during the fifteen trading days immediately prior to the conversion date.            
Interest income loan receivable               69        
AWS entities subsidiaries percentage   80.10%                    
Fair value of notes receivable       3,998   $ 3,998   3,613        
Note receivable                 $ 38 $ 105 $ 105 $ 105
Exchange for cash                 $ 35 $ 100 $ 100 $ 100
Spectrum Global Solutions, Inc. ("Spectrum") April 25, 2017 convertible note receivable [Member] | Monte Carlo [Member]                        
Notes Receivable (Textual)                        
Principal amount           1,860   2,005        
Change in fair value gain       679 $ 318 633 $ 544          
Convertible note and determined the fair value   $ 1,174   $ 2,314   $ 2,314   $ 1,963        
Conversion price per share [1]                  
Spectrum February 16, 2018 convertible promissory note [Member]                        
Notes Receivable (Textual)                        
Accrues interest rate percentage 1.00%                      
Change in fair value gain       $ 77   $ 111            
Convertible promissory note, due date Aug. 16, 2019                      
Convertible note and determined the fair value $ 348     336   $ 336            
Loans receivable, description The note is convertible into shares of common stock of Spectrum at a conversion price per share equal to 80% of the lowest VWAP over the five (5) trading days immediately prior to, but not including, the conversion date.         The conversion price per share is equal to 80% of the lowest VWAP during the five trading days immediately prior to the conversion date.            
Fair value of notes receivable $ 781     905   $ 905            
Spectrum February 16, 2018 convertible promissory note [Member] | Monte Carlo [Member]                        
Notes Receivable (Textual)                        
Principal amount           799            
Convertible note and determined the fair value $ 433     $ 569   $ 569            
Conversion price per share [2]                    
Spectrum February 27, 2018 convertible note receivable [Member]                        
Notes Receivable (Textual)                        
Accrues interest rate percentage     6.00%                  
Change in fair value gain       $ 215   $ 576            
Convertible note and determined the fair value     $ 303                  
Loans receivable, description           The conversion price per share is equal to 75% of the lowest VWAP during the fifteen trading days immediately prior to the conversion date, with a floor of $0.005 per share.            
Fair value of notes receivable     1,664 2,240   $ 2,240            
Spectrum February 27, 2018 convertible note receivable [Member] | Monte Carlo [Member]                        
Notes Receivable (Textual)                        
Principal amount           1,997            
Convertible note and determined the fair value     $ 1,361 $ 2,049   $ 2,049            
Conversion price per share [3]                    
Loans to employees [Member]                        
Notes Receivable (Textual)                        
Loans reserve       $ 0   $ 0   $ 924        
[1] The conversion price per share is equal to 75% of the lowest VWAP during the fifteen trading days immediately prior to the conversion date.
[2] The conversion price per share is equal to 80% of the lowest VWAP during the five trading days immediately prior to the conversion date.
[3] The conversion price per share is equal to 75% of the lowest VWAP during the fifteen trading days immediately prior to the conversion date, with a floor of $0.005 per share.