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v3.20.4

Revenue from Contracts with Customers (ASC 606) (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stockholders' equity | $ 131,884 |  |  |  | $ 149,989 |  |  |  | $ 131,884 | $ 149,989 | $ 99,515
Current contract assets | 1,086 |  |  |  | 1,458 |  |  |  | 1,086 | 1,458 |
Non-current contract assets | 2,661 |  |  |  | 3,408 |  |  |  | 2,661 | 3,408 |
Contract liabilities | 4,445 |  |  |  | 4,443 |  |  |  | 4,445 | 4,443 |
Long-term contract liabilities | 4,688 |  |  |  | 5,476 |  |  |  | 4,688 | 5,476 |
Deferred income tax asset | 73 |  |  |  | 45 |  |  |  | 73 | 45 |
Net loss | 11,637 | $ 537 | $ 3,552 | $ 6,214 | 3,483 | $ 4,344 | $ (47,336) | $ 6,254 | 21,940 | (33,255) |
Total net sales |  |  |  |  |  |  |  |  | 158,733 | 157,893 |
Sales, marketing and support |  |  |  |  |  |  |  |  | 29,811 | 33,434 |
Revenue recognized |  |  |  |  |  |  |  |  | 2,586 | 2,736 |
Product |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 64,619 | 61,925 |
Cost of Goods and Services Sold |  |  |  |  |  |  |  |  | 41,608 | 42,887 |
(Accumulated Deficit) Retained Earnings |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stockholders' equity | $ (2,402) |  |  |  | $ 19,538 |  |  |  | $ (2,402) | 19,538 | (15,397)
Net loss |  |  |  |  |  |  |  |  |  | (33,255) |
Revision of Prior Period, Accounting Standards Update, Adjustment |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stockholders' equity |  |  |  |  |  |  |  |  |  |  | 1,680
Current contract assets |  |  |  |  |  |  |  |  |  |  | 2,132
Non-current contract assets |  |  |  |  |  |  |  |  |  |  | 3,110
Contract liabilities |  |  |  |  |  |  |  |  |  |  | 2,970
Long-term contract liabilities |  |  |  |  |  |  |  |  |  |  | 4,018
Deferred income tax asset |  |  |  |  |  |  |  |  |  |  | 66
Sales, marketing and support |  |  |  |  |  |  |  |  |  | 15 |
Revision of Prior Period, Accounting Standards Update, Adjustment | Product |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  | 250 |
Total net sales |  |  |  |  |  |  |  |  |  | 1,350 |
Cost of Goods and Services Sold |  |  |  |  |  |  |  |  |  | $ 1,591 |
Revision of Prior Period, Accounting Standards Update, Adjustment | (Accumulated Deficit) Retained Earnings |  |  |  |  |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stockholders' equity |  |  |  |  |  |  |  |  |  |  | $ 1,680

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