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Note 2 - Acquisitions - Proforma Results (Details) - Majority Products Business of CUI Power [Member] $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) $ / shares
Revenue | $ | $ 522,128
Net loss | $ | $ (7,715)
Common Class A [Member] |
Loss per Class A common share - basic and diluted (in dollars per share) | $ / shares | $ (0.63)
Common Class B [Member] |
Loss per Class A common share - basic and diluted (in dollars per share) | $ / shares | $ (0.63)

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