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Note 11 - Income Taxes | 12 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Income Tax Disclosure [Text Block] |
11. | INCOME TAXES
GAAP prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. The Company’s provision for income taxes is calculated using the liability method. Deferred income taxes are provided for all temporary differences between the financial statement and income tax bases of assets and liabilities using tax rates enacted by law or regulation. Reconciliations between the total income tax expense (benefit) and the amount computed using the statutory federal rate of 21% for the years ended December 31, 2022 and 2021 were as follows:
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Federal income tax expense (benefit) at statutory rate |  | $ | 375 |  |  | $ | (718 | )
Adjusted for: |  |  |  |  |  |  |  |
Permanent differences |  |  | 86 |  |  |  | 102 |
Valuation allowance |  |  | (461 | ) |  |  | 616 |
Income tax expense (benefit) |  | $ | - |  |  | $ | - |
Deferred tax assets were comprised of the following temporary differences as of December 31, 2022 and 2021:
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Net operating loss and tax credit carryforwards |  | $ | 23,980 |  |  | $ | 25,132 |
Joint venture and other investments |  |  | (27 | ) |  |  | (27 | )
Accrued retirement benefits |  |  | 1,149 |  |  |  | 2,545 |
Property net book value |  |  | 2,960 |  |  |  | 2,862 |
Deferred revenue |  |  | 1,016 |  |  |  | 1,083 |
Reserves and other |  |  | (50 | ) |  |  | (5 | )
Total deferred tax assets |  |  | 29,028 |  |  |  | 31,590 |
Valuation allowance |  |  | (29,028 | ) |  |  | (31,590 | )
Net deferred tax assets |  | $ | - |  |  | $ | - |
Valuation allowances have been established to reduce future tax benefits not expected to be realized. The change in the deferred tax asset related to accrued retirement benefits and the valuation allowance includes the pension adjustment included in accumulated other comprehensive loss, which is not included in the current provision. Net Operating Loss (NOL) carryforwards created in tax years beginning after December 31, 2017 are limited by the TCJA. The Company had approximately $67.6 million in federal NOL carry forwards at December 31, 2022, that expire from 2028 through 2034. The Company had approximately $81.7 million in state NOL carry forwards at December 31, 2022, that expire from 2028 through 2034. The Company had approximately $5.7 million in federal and state NOL carry forwards at December 31, 2022 that do not expire.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI https://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI https://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(2)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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