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Nature of the Business and Operations (Details) - USD ($)
 1 Months Ended 12 Months Ended
Dec. 28, 2018
Aug. 31, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Nature of the Business and Operations (Textual)          
Net loss (including noncontrolling interests)       $ (3,060,000) $ (4,705,000)
Accumulated deficit       (185,222,000) (183,745,000)
Net cash used in operating activities       (2,859,000) (5,581,000)
Net proceeds from issuance of common stock       $ 4,620,000 $ 79,079,000
Shelf registration statement, expire date     Mar. 24, 2020    
Aggregate of common stock offering price     $ 20,000,000    
Securities Purchase Agreement [Member]          
Nature of the Business and Operations (Textual)          
Issuance of common stock 2,940,767 975,000      
Net proceeds from issuance of common stock $ 4,600,000 $ 9,100,000      
Shares price per share $ 1.60 $ 10.00      
Warrant issued to purchase shares of common stock   325,000      
Description of warrants   The 2017 Warrants became exercisable on August 8, 2018 and will expire on August 8, 2020.      
Proceeds from issuance of warrants   $ 9,750,000      
Aggregate of common stock offering price   $ 6,500,000      
Purchased common stock in private placement $ 2,000,000        
Percentage of beneficial owner 18.00%        
Common stock at an exercise price   $ 20.00