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Subsequent Events (Details Narrative) - USD ($)
12 Months Ended
Mar. 29, 2019
Dec. 31, 2018
Apr. 01, 2019
Sep. 17, 2018
Dec. 31, 2017
Dec. 31, 2016
Debt instrument maturity date   Mar. 31, 2021        
Issuance of warrants to purchase a common stock       1,200,000    
Exercise price of warrants   $ 7.33   $ 0.01 $ 25.68 $ 26.76
Warrants expiration date       Aug. 01, 2028    
Second Amended and Restated Credit Agreement [Member] | Forecast [Member]            
Cash balance   $ 1,500,000,000        
Subsequent Event [Member]            
Issuance of warrants to purchase a common stock     1,200,000      
Exercise price of warrants     $ 0.01      
Warrants expiration date     Apr. 01, 2029      
Outstanding common stock, percentage     70.00%      
Subsequent Event [Member] | Warrants [Member]            
Outstanding common stock, percentage     75.00%      
Subsequent Event [Member] | Second Amended and Restated Credit Agreement [Member]            
Debt face amount $ 10,000,000          
Interest rate 10.00%          
Debt instrument maturity date Mar. 31, 2021          
Subsequent Event [Member] | Second Amended and Restated Credit Agreement [Member] | LIBO Rate [Member]            
Interest rate 2.3125%          
Subsequent Event [Member] | Second Amended and Restated Credit Agreement [Member] | Forecast [Member]            
Debt face amount $ 1,500,000          
Subsequent Event [Member] | X-Spine Systems, Inc [Member] | Second Amended and Restated Credit Agreement [Member]            
Debt face amount $ 2,200,000