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Note 5 - Accumulated Other Comprehensive Loss | 9 Months Ended
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Sep. 30, 2021
Notes to Financial Statements |
Comprehensive Income (Loss) Note [Text Block] | 5. Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss by component were as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Foreign currency translation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (1,430 | ) |  | $ | (1,857 | ) |  | $ | (1,370 | ) |  | $ | (1,778 | )
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustments (1) |  |  | (153 | ) |  |  | 268 |  |  |  | (213 | ) |  |  | 189 |
Total accumulated other comprehensive loss |  | $ | (1,583 | ) |  | $ | (1,589 | ) |  | $ | (1,583 | ) |  | $ | (1,589 | )
(1) In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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