v3.25.4

Note 8 - Stockholders' Equity - Stock Warrants Outstanding and Issuances (Details)	3 Months Ended
	Dec. 31, 2025 $ / shares shares
Stock Warrants Outstanding, Shares (in shares)	860,206
Placement Agent Stock Warrants 1 [Member]
Stock Warrants Outstanding, Issue Date	Feb. 04, 2021
Stock Warrants Outstanding, Shares (in shares)	31,564
Stock Warrants Outstanding, Price (in dollars per share) | $ / shares	$ 3.88
Stock Warrants Outstanding, Expiration	Feb. 04, 2026
Investor Stock Warrants 1 [Member]
Stock Warrants Outstanding, Issue Date	May 14, 2021
Stock Warrants Outstanding, Shares (in shares)	592,106
Stock Warrants Outstanding, Price (in dollars per share) | $ / shares	$ 2.51
Stock Warrants Outstanding, Expiration	Nov. 16, 2026
Placement Agent Stock Warrants 2 [Member]
Stock Warrants Outstanding, Issue Date	May 14, 2021
Stock Warrants Outstanding, Shares (in shares)	166,536
Stock Warrants Outstanding, Price (in dollars per share) | $ / shares	$ 2.85
Stock Warrants Outstanding, Expiration	May 12, 2026
Placement Agent Stock Warrants 3 [Member]
Stock Warrants Outstanding, Issue Date	Mar. 26, 2025
Stock Warrants Outstanding, Shares (in shares)	70,000
Stock Warrants Outstanding, Price (in dollars per share) | $ / shares	$ 1.88
Stock Warrants Outstanding, Expiration	Mar. 24, 2030

X

- Definition

Date at which the warrants or rights have been issued, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	blin_ClassOfWarrantOrRightDateOfIssuance
Namespace Prefix:	blin_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the warrants or rights expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	blin_ClassOfWarrantOrRightExpirationDate
Namespace Prefix:	blin_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=blin_PlacementAgentStockWarrants1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=blin_InvestorStockWarrants1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=blin_PlacementAgentStockWarrants2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=blin_PlacementAgentStockWarrants3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: