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Interim Period Reporting (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2017
Mar. 31, 2017
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Dec. 31, 2010
Interim Period Reporting (Textual)            
Number of equipment sold           $ 59,000,000
Net loss     $ (693,000) $ (873,000)    
Accumulated deficit     (182,855,000)   $ (183,745,000)  
Net cash used in operating activities     $ (561,000) $ (1,605,000)    
Shelf registration common stock offering price   $ 20,000,000        
Shelf registration statement expiration date   Mar. 24, 2020        
August 2017 Private Placement [Member]            
Interim Period Reporting (Textual)            
Issuance of common stock         3,250,000  
Share price $ 1.00          
Cash proceeds from warrants         $ 6,500,000  
Warrants purchase exercise price $ 2.00          
Securities Purchase Agreement [Member] | August 2017 Private Placement [Member]            
Interim Period Reporting (Textual)            
Issuance of common stock 9,750,000          
Net proceeds from issuance of common stock $ 9.75          
Share price $ 1.00          
Warrant expiration date Aug. 08, 2020          
Warrants to purchase shares of common stock 3,250,001          
Warrants purchase exercise price $ 2.00          
Aggregate purchase price of warrants $ 9,750,000          
Warrant exercisable, description The 2017 Warrants will become exercisable on August 8, 2018, and will expire on August 8, 2020.          
Warrants exercised value $ 6,500,000