XML 91 R74.htm IDEA: XBRL DOCUMENT
v3.22.1

Stock-Based Compensation - Stock Option Plan (Details) - 2012 Stock Plan | 12 Months Ended
--- | ---
Dec. 31, 2021
Outstanding stock options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of common stock value at grant date | 100.00%
Vesting period | 4 years
Incentive Stock Options | Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of common stock value at grant date | 110.00%
Stockholder percentage | 10.00%

X
- Definition Share-Based Compensation Arrangement By Share-based Payment Award, Exercise Price, Percentage Of Estimated Fair Value Of Common Stock At Date Of Grant + References No definition available. + Details
Name: | blnd_ShareBasedCompensationArrangementByShareBasedPaymentAwardExercisePricePercentageOfEstimatedFairValueOfCommonStockAtDateOfGrant
Namespace Prefix: | blnd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share-Based Compensation Arrangement By Share-based Payment Award, Stockholder Percentage + References No definition available. + Details
Name: | blnd_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockholderPercentage
Namespace Prefix: | blnd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=blnd_A2012StockPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=blnd_IncentiveStockOptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |