Note 9 - Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details)
$ in Thousands
|3 Months Ended|
Mar. 31, 2021
|Accumulated Foreign Currency Adjustment Attributable to Parent [Member]|
|Other comprehensive loss||(182)|
|AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]|
|Other comprehensive loss||(7)|
|AOCI Attributable to Parent [Member]|
|Other comprehensive loss||(189)|
Amount after tax of other comprehensive income (loss) attributable to parent entity.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef