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v3.22.2

Unaudited Condensed Consolidated Statements of Shareholders' Equity (Parentheticals) - shares | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Cashless warrant exercises (in shares) | (0) | 79,100

X
- Definition The number of warrants or rights exercised during period. + References No definition available. + Details
Name: | blfs_ClassOfWarrantOrRightExercisedDuringPeriod
Namespace Prefix: | blfs_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration