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Summary of Significant Accounting Policies (Details Textual)
$ in Thousands
9 Months Ended 12 Months Ended
Dec. 31, 2018
USD ($)
Customers
shares
Dec. 31, 2017
shares
Mar. 31, 2018
USD ($)
Summary of Significant Accounting Policies (Textual)      
Warrants outstanding 167,363 0  
Stock options outstanding 5,111,668 1,833,334  
Common stock issuable for convertible notes payable 2,662,267 2,669,682  
Restricted cash | $ $ 200   $ 370
Amount insured by federal deposit insurance corporation | $ $ 250    
Number of customer | Customers 3    
Capitalized internal use software, description Straight-line basis over their three- to five-year estimated useful lives.    
Capitalized internal use software | $ $ 2,100    
Restricted stock units outstanding 673,408 0  
Intellectual Property [Member]      
Summary of Significant Accounting Policies (Textual)      
Intangible assets finite useful lives 15 years    
Domain Names [Member]      
Summary of Significant Accounting Policies (Textual)      
Intangible assets finite useful lives 5 years    
Software [Member]      
Summary of Significant Accounting Policies (Textual)      
Intangible assets finite useful lives 5 years    
Maximum [Member] | Customer Relationships [Member]      
Summary of Significant Accounting Policies (Textual)      
Intangible assets finite useful lives 5 years    
Minimum [Member] | Customer Relationships [Member]      
Summary of Significant Accounting Policies (Textual)      
Intangible assets finite useful lives 1 year 6 months    
Buildings and improvements [Member]      
Summary of Significant Accounting Policies (Textual)      
Property and equipment estimated useful lives 5 years    
Furniture and equipment [Member] | Maximum [Member]      
Summary of Significant Accounting Policies (Textual)      
Property and equipment estimated useful lives 5 years    
Furniture and equipment [Member] | Minimum [Member]      
Summary of Significant Accounting Policies (Textual)      
Property and equipment estimated useful lives 3 years    
Computer equipment and software [Member] | Maximum [Member]      
Summary of Significant Accounting Policies (Textual)      
Property and equipment estimated useful lives 5 years    
Computer equipment and software [Member] | Minimum [Member]      
Summary of Significant Accounting Policies (Textual)      
Property and equipment estimated useful lives 3 years    
Trade receivables [Member] | Customer one [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration risk, percentage 10.00%   15.00%
Trade receivables [Member] | Customer two [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration risk, percentage 23.00%   16.00%
Trade receivables [Member] | Customer three [Member]      
Summary of Significant Accounting Policies (Textual)      
Concentration risk, percentage 41.00%   34.00%