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ACCOUNTING STANDARDS (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 29, 2018 | Sep. 30, 2017 | Sep. 29, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Amount | $ 8,800,000 |  | $ 8,800,000 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 12 months |  | 12 months |  |  |
Revenues | $ (5,126,330) | $ (6,139,167) | $ (16,723,848) | $ (16,444,764) |  |
Contract with Customer, Asset, Net | 1,935,262 |  | 1,935,262 |  | $ 3,555,137 | $ 704,863
Inventory | (4,953,908) |  | (4,953,908) |  | (3,998,168) | (5,080,797)
Other assets | 2,096,578 |  | 2,096,578 |  | 4,242,068 | 3,842,068
Total contract liabilities and billings in excess of revenue earned |  |  |  |  |  | 1,555,883
Contract with Customer, Liability | (428,642) |  | (428,642) |  | (664,146) | (896,479)
Accumulated deficit | (261,631,136) |  | (261,631,136) |  | (237,062,519) | $ (240,121,901)
Research and development revenues | (1,482,711) | (549,765) | (3,563,341) | (1,942,819) |  |
Net Income (Loss) Attributable to Parent | (9,791,383) | (8,247,422) | (24,568,618) | (23,437,834) |  |
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 | (3,643,619) | (5,589,402) | (13,160,507) | (14,501,945) |  |
Research and development revenues | (1,482,711) |  | (3,563,341) |  |  |
Cost of Goods and Services Sold | 3,659,800 | $ 4,144,884 | 11,219,741 | $ 11,379,467 |  |
Net Income (Loss) Attributable to Parent | (9,791,383) |  | (24,568,618) |  |  |
Product [Member] | Calculated under Revenue Guidance in Effect before Topic 606 [Member] |  |  |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |
Revenues | (3,878,651) |  | (14,867,927) |  |  |
Research and development revenues | (1,569,255) |  | (3,822,973) |  |  |
Cost of Goods and Services Sold | 3,497,549 |  | 11,997,670 |  |  |
Net Income (Loss) Attributable to Parent | (9,307,556) |  | (23,379,495) |  |  |
Product [Member] | Difference between Revenue Guidance in Effect before and after Topic 606 [Member] |  |  |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |
Revenues | (235,032) |  | (1,707,420) |  |  |
Research and development revenues | (86,544) |  | (259,632) |  |  |
Cost of Goods and Services Sold | 162,251 |  | 777,929 |  |  |
Net Income (Loss) Attributable to Parent | $ (483,827) |  | $ (1,189,123) |  |  |
Transferred at Point in Time [Member] |  |  |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |
Revenue, Percentage from Products and Services Transferred to Customers | 63.00% | 91.00% | 63.00% | 88.00% |  |
Transferred over Time [Member] |  |  |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |  |  |
Revenue, Percentage from Products and Services Transferred to Customers | 37.00% | 9.00% | 37.00% | 12.00% |  |

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