Consolidated Statement of Stockholders' Equity (Unaudited) - Parenthetical - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Tax effect of change in post retirement benefits	$ 16,000	$ 20,000	$ 33,000	$ 40,000
Unrealized Foreign Currency Hedge Gain (Loss), Tax	(174,000)	(68,000)	186,000	(202,000)
Unrealized Interest Rate Swap Gain (Loss), Tax	$ (14,000)	$ 106,000	$ 164,000	$ 164,000

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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