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Business Combination - Additional Information (Detail)
 3 Months Ended
Nov. 14, 2017
USD ($)
Jul. 01, 2017
USD ($)
$ / shares
shares
Jan. 20, 2017
USD ($)
Jan. 01, 2017
Apr. 14, 2016
USD ($)
shares
Apr. 14, 2016
SEK (kr)
shares
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Jul. 05, 2017
USD ($)
Apr. 14, 2016
kr / shares
Business Acquisition [Line Items]                    
Business acquisition deferred payment consideration             $ 0 $ 1,018,000    
Allenex [Member]                    
Business Acquisition [Line Items]                    
Percentage of share acquired         98.30%          
Total purchase price combination of cash and common stock         $ 34,100,000          
Cash distribution to acquire business, gross         $ 26,900,000   $ 692,000 0    
Common stock, shares issue | shares         1,375,029 1,375,029        
Common stock value         $ 7,200,000          
Business acquisition deferred payment consideration         $ 5,700,000 kr 50,620,000        
Business acquisition deferred payment date         Mar. 31, 2017 Mar. 31, 2017        
Escrow Deposit                 $ 8,000,000  
Deferred obligation   $ 6,300,000                
Business acquisition deferred payment extended date             Jul. 01, 2017      
Conversion of deferred obligation into shares   $ 1,100,000                
Shares issued upon conversion | shares   1,022,544                
Conversion into common stock per share price | $ / shares   $ 1.12                
Portion of deferred obligation considered for extended maturity date   $ 2,900,000                
Additional repayment amount of deferred obligation   $ 2,100,000                
Payable date of deferred obligation additional repayment amount   Dec. 31, 2017                
Percentage of accruing interest   10.00%                
Percentage of non controlling interest         1.70%          
Price per share of Allenex used to determine fair value of non controlling interest | kr / shares                   kr 2.48
Allenex [Member] | Maximum [Member]                    
Business Acquisition [Line Items]                    
Business acquisition deferred payment extended date   Mar. 31, 2019                
Allenex [Member] | Former Majority Shareholders [Member]                    
Business Acquisition [Line Items]                    
Business acquisition deferred payment consideration   $ 500,000                
Percentage of accruing interest       10.00%            
Reduction in deferred obligation   $ 500,000                
Allenex [Member] | Former Majority Shareholders [Member] | Conditional Share Purchase Agreement [Member]                    
Business Acquisition [Line Items]                    
Deferred purchase consideration including accrued interest paid $ 4,700,000                  
Conexio [Member]                    
Business Acquisition [Line Items]                    
Cash distribution to acquire business, gross     $ 400,000              
Acquisition related quarterly payments, percentage on gross revenue     20.00%              
Periodic quarterly payments on gross revenue               $ 0    
Conexio [Member] | Maximum [Member]                    
Business Acquisition [Line Items]                    
Acquisition related quarterly payments on gross revenue     $ 700,000              
Periodic quarterly payments on gross revenue             $ 100,000