Note 11 - Segment and Geographic Data (Details Textual)
|6 Months Ended|
Jun. 30, 2021
|Number of Reportable Segments||2|
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef