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Note 19 - Subsequent Events (Details Textual) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Jan. 15, 2021 | Jan. 08, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Proceeds from Sale of Property, Plant, and Equipment, Total |  |  | $ 3,961 | $ 5,807
Property, Plant and Equipment, Net, Ending Balance |  |  | $ 34,501 | $ 41,943
Subsequent Event [Member] | A Property in Hong Kong [Member] |  |  |  |
Proceeds from Sale of Property, Plant, and Equipment, Total | $ 6,700 |  |  |
Subsequent Event [Member] | A Property in Hong Kong [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |  |
Property, Plant and Equipment, Net, Ending Balance | $ 500 |  |  |
rms Connectors, Inc. [Member] | Subsequent Event [Member] |  |  |  |
Payments to Acquire Businesses, Gross |  | $ 8,500 |  |

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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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