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ACCOUNTING STANDARDS (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Dec. 31, 2017
Dec. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenue, Remaining Performance Obligation, Amount $ 6,000,000   $ 6,000,000      
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 2 years   2 years      
Revenues $ (5,943,898) $ (5,927,469) $ (11,597,518) $ (10,305,597)    
Contract with Customer, Asset, Net 2,384,307   2,384,307   $ 3,555,137 $ 704,863
Inventory (4,257,702)   (4,257,702)   (3,998,168) (5,080,797)
Other assets 2,173,428   2,173,428   4,242,068 3,842,068
Total contract liabilities and billings in excess of revenue earned           1,555,883
Contract with Customer, Liability (317,094)   (317,094)   (664,146) (896,479)
Accumulated deficit (251,839,754)   (251,839,754)   (237,062,519) $ (240,121,901)
Research and development revenues (1,471,819) (948,069) (2,080,630) (1,393,054)    
Net Income (Loss) Attributable to Parent (9,240,957) (7,331,971) (14,777,235) (15,190,410)    
Accounting Standards Update 2014-09 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Contract with Customer, Asset, Net         2,850,274  
Inventory         (1,082,629)  
Other assets         400,000  
Contract with Customer, Liability         (891,737)  
Accumulated deficit         $ 3,059,382  
Product [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenues (4,472,079) (4,979,400) (9,516,888) (8,912,543)    
Research and development revenues (1,471,819)   (2,080,630)      
Cost of Goods and Services Sold 3,497,750 $ 4,117,226 7,559,941 $ 7,234,583    
Net Income (Loss) Attributable to Parent (9,240,957)   (14,777,235)      
Product [Member] | Calculated under Revenue Guidance in Effect before Topic 606 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenues (4,483,933)   (10,989,276)      
Research and development revenues (1,558,363)   (2,253,718)      
Cost of Goods and Services Sold 3,495,042   8,500,121      
Net Income (Loss) Attributable to Parent (9,139,851)   (14,071,939)      
Product [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenues (11,854)   (1,472,388)      
Research and development revenues (86,544)   (173,088)      
Cost of Goods and Services Sold 2,708   940,180      
Net Income (Loss) Attributable to Parent $ (101,106)   $ (705,296)      
Transferred at Point in Time [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenue, Percentage from Products and Services Transferred to Customers 59.00% 84.00% 63.00% 86.00%    
Transferred over Time [Member]            
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]            
Revenue, Percentage from Products and Services Transferred to Customers 41.00% 16.00% 37.00% 14.00%