2. Discontinued Operations (Details) - Gillam Frequency Electronics Inc [Member]	Apr. 26, 2018 USD ($)
2. Discontinued Operations (Details) [Line Items]
Proceeds from Divestiture of Businesses	$ 1,000,000
Financing Receivable, before Allowance for Credit Loss, Noncurrent	1,000,000
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax	$ 359,000

No definition available.

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- Definition

Amount after tax of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation.

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- Definition

Amount, before allowance for credit loss, of financing receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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