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v3.20.2

Note 1 - Nature of Operations (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Apr. 10, 2020 USD ($)
Number of Operating Segments |  |  |  |  |  |  | 2 |  |
Net Income (Loss) Attributable to Parent, Total | $ 458 | $ 170 | $ (1,143) | $ 647 | $ (187) | $ 1,138 | $ (515) | $ 1,598 |
Revenue from Contract with Customer, Including Assessed Tax | 14,443 |  |  | 14,632 |  |  | 38,948 | 47,046 |
M&T [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  | $ 7,500
Semiconductor Market [Member] |  |  |  |  |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 7,387 |  |  | $ 7,126 |  |  | $ 19,256 | $ 24,878 |

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