Annual report pursuant to Section 13 and 15(d)

Recent Accounting Standards - Schedule of Effect of Adoption of ASC Topic 606 on Condensed Consolidated Balance Sheet and Statement of Operations (Details)

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Recent Accounting Standards - Schedule of Effect of Adoption of ASC Topic 606 on Condensed Consolidated Balance Sheet and Statement of Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accounts receivable, net $ 9,483 $ 3,437
Accumulated deficit (141,489) $ (131,800)
Revenue, net 21,896  
Balances without Adoption of ASC 606 [Member]    
Accounts receivable, net 8,346  
Accumulated deficit (143,989)  
Revenue, net 21,243  
Effect of Change Higher/(Lower) [Member]    
Accounts receivable, net [1] 1,137  
Accumulated deficit (2,500)  
Revenue, net $ 653  
[1] Includes approximately $0.6 million of 2017 accounts receivable related to the adoption of ASC 606 as of January 1, 2018.