XML 50 R35.htm IDEA: XBRL DOCUMENT v3.25.1

Note 9 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Share-based Compensation, Expense [Table Text Block]

		Years ended
		December 31,
		2024				2023
Research and development		$	413			$	465
Selling, general and administrative			328				565
Total share-based compensation		$	741			$	1,030

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Number of shares				Weighted average exercise price				Weighted average remaining contractual term (years)				Aggregate intrinsic value (in thousands)
Balance, December 31, 2022			145,513			$	60.60				7.5
Stock options granted			47,219				20.85
Stock options exercised			(13	)			22.35
Stock options forfeited			(26,512	)			36.30
Stock options expired			(423	)			241.35
Balance, December 31, 2023			165,784			$	52.67				6.8
Stock options granted			14,974				2.65
Stock options forfeited			(3,177	)			33.97
Stock options expired			(9,397	)			63.51
Balance, December 31, 2024			168,184			$	47.97				6.6			$	—
Exercisable, December 31, 2024			121,530			$	59.49				5.8			$	—
Options vested and expected to vest			168,184			$	47.97				6.6			$	—

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		Years ended
		December 31,
		2024				2023
Risk-free interest rate			3.9	%		3.7	-	4.9	%
Volatility			125	%		110	-	120	%
Dividend yield		None				None
Expected term (in years)			6.25			6.25	-	10.0

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

						Weighted
						average
						grant date
		Number of				fair value
		shares				per share
Balance, December 31, 2022			1,435			$	64.95
RSUs granted			22,104				25.50
RSUs RSUs vested and settled			(16,080	)			28.95
RSUs forfeited			(7,459	)			25.50
Balance, December 31, 2023			—			$	n/a
RSUs granted			113,427				2.65
RSUs released			(60,409	)			2.65
RSUs forfeited			(53,018	)			2.65
Balance, December 31, 2024			—			$	n/a

X

- Definition

Tabular disclosure of the components of the allocated share-based compensation expense.

+ References

No definition available.

+ Details

Name:	bcda_ScheduleOfSharebasedCompensationExpenseTableTextBlock
Namespace Prefix:	bcda_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration