Note 2 - Business Acquisition - Components of the Purchase Price of Schroff Technologies International, Inc. (Details) - Schrofftech [Member] - USD ($)	Nov. 04, 2019	Nov. 01, 2019
Cash consideration paid	$ 4,000,000	$ 4,000,000
Earn-out liability		1,249,000
Total purchase price		$ 5,249,000

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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