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v3.25.1

Note 2 - Inventories, Net (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disposal of Inventory | $ 511 | $ (0)

X
- Definition The amount of fully depreciated inventory disposed of. + References No definition available. + Details
Name: | bkti_DisposalOfInventory
Namespace Prefix: | bkti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration