CNB Loan	12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]
CNB Loan	F. CNB Loan On December 31, 2016, MtronPTI renewed its Loan Agreement (the "CNB Loan Agreement") with City National Bank of Florida ("City National"). The CNB Loan Agreement provided for a revolving line of credit in the amount of $3.0 million (the "CNB Revolver"), bearing interest at a variable rate equal to 30-day LIBOR plus 200 basis points to be set on the first day of each month, expiring on September 30, 2018. The CNB Loan Agreement also provided that MtronPTI will pay City National a fee equal to 0.75% per year on the daily unused amount. The Company's obligations under the CNB Loan Agreement were secured only by cash collateral and did not require any other liens. At December 31, 2017, there was no balance outstanding under the CNB Revolver. The CNB Revolver expired September 30, 2018.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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