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Note 4 - Other Expense, Net (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Other Nonoperating Income (Expense), Total | $ (645,000) | $ (544,000)
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component | (614,000) | (728,000)
Proceeds from Sale of Property, Plant, and Equipment, Total | $ 10,000 | 1,969,000
Gain (Loss) on Disposition of Property Plant Equipment, Before Abandonment Gain (Loss) |  | 813,000
Assets Disposed of by Method Other than Sale, in Period of Disposition, Gain (Loss) on Disposition |  | (577,000)
Transition of Production from the Broadway Plant [Member] |  |
Proceeds from Sale of Property, Plant, and Equipment, Total |  | 1,700,000
Proceeds from Sale of Other Property, Plant, and Equipment |  | $ 268,000

X
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, before abandonment gain (loss). + References No definition available. + Details
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X
- Definition Amount of gain (loss) from the disposal of an asset through means other than sale, for example, but not limited to, abandonment, spin-off, and expropriation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2611-110228 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123374638&loc=d3e2212-110226 + Details
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition Amount of cash inflow for the sale of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
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