Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies and Estimates (Details Textual)

v3.7.0.1
Basis of Presentation and Summary of Significant Accounting Policies and Estimates (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2017
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Jan. 31, 2017
Subsequent Event [Member]            
Significant Accounting Policies [Line Items]            
Proceeds from Issuance of Common Stock $ 10,900          
Accounting Standards Update 2016-09 [Member]            
Significant Accounting Policies [Line Items]            
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets           $ 171
Medical Device [Member]            
Significant Accounting Policies [Line Items]            
Deferred Revenue, Revenue Recognized         $ 6,517  
Cost of Revenue         $ 4,159  
Product Liability Accrual, Component Amount     $ 212      
Customer Advances and Deposits, Current     911      
Reduction In Net Loss Attributable To Common Stock Holders     $ 2,358      
Reduction Percentage In Net Loss Attributable To Common Stock Holders     $ 0.13      
Sales Revenue, Net [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   10.00%        
Customer One [Member] | Accounts Receivable [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   11.00%   18.00%    
Customer One [Member] | Sales Revenue, Net [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   26.00% 27.00%      
Customer Two [Member] | Accounts Receivable [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   11.00%   16.00%    
Customer Two [Member] | Sales Revenue, Net [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage     20.00%      
Customer Three [Member] | Accounts Receivable [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   10.00%   11.00%    
Customer Three [Member] | Sales Revenue, Net [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage     11.00%      
Customer Four [Member] | Sales Revenue, Net [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage     10.00%      
Customer Concentration Risk [Member] | Accounts Receivable [Member]            
Significant Accounting Policies [Line Items]            
Concentration Risk, Percentage   10.00%