Subsequent Events (Details) (Share Exchange and Contribution Agreement [Member], USD $)	1 Months Ended
Jul. 31, 2012	Jul. 24, 2012
Share Exchange and Contribution Agreement [Member]
Subsequent Event [Line Items]
Subsequent event, date	Jul. 24, 2012
Contribution amount, lower range	$ 2,000,000
Contribution amount, higher range	$ 3,000,000
Initial per share price (in dollars per share)		$ 1.75
Common shares contributed (in shares)	420,000
Number of common shares received in exchange for capital contribution (in shares)	1,143,864
Highest weighted average closing price per share used to determine number of shares issued in the Agreement (in dollars per share)	$ 4.7661
Original ownership interest percentage in LifeMap (in hundredths)		86.30%
New ownership interest percentage, minimum		73.60%
New ownership interest percentage, maximum		77.40%

Percentage of shares of common stock issued to total outstanding shares in the business combination.

No definition available.

Name:	btx_BusinessAcquisitionSharesIssuedOrIssuablePercentageOfCommonStockOwnership
Namespace Prefix:	btx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The resulting maximum ownership percentage, as a result of the share agreement.

+ References

No definition available.

+ Details

Name:	btx_SubsequentEventEndingPercentageOfCommonSharesOutstandingMaximum
Namespace Prefix:	btx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The resulting minimum ownership percentage, as a result of the share agreement.

+ References

No definition available.

+ Details

Name:	btx_SubsequentEventEndingPercentageOfCommonSharesOutstandingMinimum
Namespace Prefix:	btx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted average closing price per share as used to determine the number of shares issued in a share exchange contribution agreement.

+ References

No definition available.

+ Details

Name:	btx_SubsequentEventWeightedAveragePerShareClosingPrice
Namespace Prefix:	btx_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee in exchange for capital contribution.

+ References

No definition available.

+ Details

Name:	btx_SubsidiaryOrEquityMethodInvesteeNumberOfSharesIssuedInExchangeForCapitalContribution
Namespace Prefix:	btx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

+ Details

Name:	us-gaap_SaleOfStockPricePerShare
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The highest estimated amount of the financial effect of the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 855

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

+ Details

Name:	us-gaap_SubsequentEventAmountHigherRange
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The lowest estimated amount of the financial effect of the event or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 855

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

+ Details

Name:	us-gaap_SubsequentEventAmountLowerRange
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Definition

Date the event occurred after the balance sheet date but before financial statements are issues or available to be issued, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 855

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

+ Details

Name:	us-gaap_SubsequentEventsDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration