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Segment Reporting (Details Narrative) - customer
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Revenue            
Revenue, Major Customer [Line Items]            
Number of customers accounting for greater than 10% of accounts receivable or revenues 0 1 0 1    
Accounts receivable            
Revenue, Major Customer [Line Items]            
Number of customers accounting for greater than 10% of accounts receivable or revenues     0     3
Customer concentration risk | Revenue            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer 10.00%   10.00%      
Datang Telecom International Technology Co., Ltd [Member] | Customer concentration risk | Accounts receivable            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer         15.00%  
Huawei Technologies Co., Ltd [Member] | Customer concentration risk | Accounts receivable            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer         12.00%  
Hitachi Data Systems [Member] | Customer concentration risk | Revenue            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer   11.00%   11.00%    
Hitachi Data Systems [Member] | Customer concentration risk | Accounts receivable            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer         14.00%  
Community Health Services [Member] | Customer concentration risk | Accounts receivable            
Revenue, Major Customer [Line Items]            
Percentage accounted for by one customer     10.00%