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Segment Information (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) Segment | Dec. 31, 2015 USD ($)
Segment Reporting [Abstract] |  |
Number of reportable business segments | Segment | 2 |
Revenues from Operations [Abstract] |  |
Revenues from operations | $ 20,891 | $ 20,713
Operating Income (Loss) from Operations |  |
Consolidated total operating loss | (161) | (788)
Interest expense, net | (22) | (32)
Other income, net | 166 | 117
Total other income | 144 | 85
Loss Before Income Taxes | (17) | (703)
Capital Expenditures [Abstract] |  |
Total capital expenditures | 172 | 422
Total Assets [Abstract] |  |
Total assets | 16,646 | 15,803
Foreign [Member] |  |
Revenues from Operations [Abstract] |  |
Revenues from operations | 5,998 | 5,453
Reportable Segment [Member] | USA [Member] |  |
Revenues from Operations [Abstract] |  |
Revenues from operations | 20,691 | 20,713
Reportable Segment [Member] | Foreign [Member] |  |
Revenues from Operations [Abstract] |  |
Revenues from operations | 200 |
General corporate [Member] |  |
Capital Expenditures [Abstract] |  |
Total capital expenditures | 10 | 10
Total Assets [Abstract] |  |
Total assets | 7,100 | 7,537
Unallocated corporate expense [Member] |  |
Operating Income (Loss) from Operations |  |
Consolidated total operating loss | (1,111) | (1,097)
Electronic components [Member] | Reportable Segment [Member] |  |
Operating Income (Loss) from Operations |  |
Consolidated total operating loss | 1,011 | 309
Capital Expenditures [Abstract] |  |
Total capital expenditures | 162 | 412
Total Assets [Abstract] |  |
Total assets | 9,015 | 8,266
Electronic components [Member] | Reportable Segment [Member] | Foreign [Member] |  |
Revenues from Operations [Abstract] |  |
Revenues from operations |  | 0
LGL_ Electronic Instruments [Member] |  |
Operating Income (Loss) from Operations |  |
Consolidated total operating loss | (61) | 0
Capital Expenditures [Abstract] |  |
Total capital expenditures | 0 | 0
Total Assets [Abstract] |  |
Total assets | $ 531 | $ 0

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