Segment Information - Schedule of Reportable Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Revenues from Operations
Revenues from operations	$ 6,632	$ 5,945
Operating Income
Total operating income	434	158
Interest income, net	1	12
Other income, net	153	24
Total other income	154	36
Income Before Income Taxes	588	194
Unallocated corporate expense [Member]
Operating Income
Total operating income	(217)	(394)
Electronic components [Member]
Revenues from Operations
Revenues from operations	6,331	5,731
Electronic components [Member] \| Reportable Segment [Member]
Operating Income
Total operating income	558	550
Electronic instruments [Member]
Revenues from Operations
Revenues from operations	301	214
Electronic instruments [Member] \| Reportable Segment [Member]
Operating Income
Total operating income	$ 93	$ 2

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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The net amount of operating interest income (expense).

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