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Related Party Transactions (Details) - USD ($)
1 Months Ended 3 Months Ended
Apr. 05, 2019
Mar. 04, 2019
May 14, 2019
Apr. 05, 2019
Mar. 31, 2019
Mar. 31, 2018
Apr. 01, 2019
Dec. 31, 2018
Related Party Transactions (Details) [Line Items]                
Proceeds from Warrant Exercises         $ 2,000,000    
Transtech [Member]                
Related Party Transactions (Details) [Line Items]                
Related Party Transaction, Purchases from Related Party         11,000 $ 63,000    
Due to Related Parties, Current         316,000     $ 305,000
Unilumin [Member]                
Related Party Transactions (Details) [Line Items]                
Proceeds from Warrant Exercises   $ 2,000,000            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)   2,061,856            
Executive Officer [Member]                
Related Party Transactions (Details) [Line Items]                
Due to Officers or Stockholders         $ 411,000     $ 427,000
Subsequent Event [Member]                
Related Party Transactions (Details) [Line Items]                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)             3,608,247  
Subsequent Event [Member] | Unilumin [Member]                
Related Party Transactions (Details) [Line Items]                
Proceeds from Warrant Exercises $ 3,500,000   $ 3,500,000 $ 5,500,000        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares) 3,618,247     3,618,247        
Common Stock [Member] | Convertible Preferred Stock [Member] | Series B Preferred Stock [Member]                
Related Party Transactions (Details) [Line Items]                
Conversion of Stock, Shares Issued (in Shares)   1,586,400