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INCOME TAXES (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Feb. 13, 2013 Series A Junior Participating Preferred Stock item	Feb. 13, 2013 Series A Junior Participating Preferred Stock Minimum	Feb. 12, 2013 Series A Junior Participating Preferred Stock Minimum	Feb. 13, 2013 Series A Junior Participating Preferred Stock Maximum
Rights Plan
Beneficial ownership percentage of any person or group, together with its affiliates and associates						4.90%
Number of rights for each outstanding share of common stock			1
Number of preferred share purchase rights for each outstanding share of the company's common stock			0.001
Exercise price (in dollars per right)			$ 14.00
Threshold percentage of beneficial ownership for significant dilution of ownership interest				4.90%
Current beneficial ownership percentage that will not trigger the preferred share purchase rights unless they acquire additional shares					4.90%
Unrecognized tax benefits	$ 286	$ 495
Accrued interest or penalties related to uncertain tax positions recognized	$ 219	$ 209

X

- Definition

This element represents the beneficial ownership percentage of any person or group, together with its affiliates and associates under the Rights Plan allowed before terms of the agreement intended to deter ownership take effect.

+ References

No definition available.

+ Details

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Namespace Prefix:	bwen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the current beneficial ownership percentage that will not trigger the preferred share purchase rights unless they acquire additional shares under the rights plan.

+ References

No definition available.

+ Details

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Namespace Prefix:	bwen_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the number of rights for each outstanding share of common stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	bwen_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Definition

Subsequent to the adoption of a shareholders rights plan, this value represents the threshold percentage of beneficial ownership of common stock acquired by any person or group without approval of the board of directors, or additional shares acquired by any shareholder already holding such percentage of common stock, upon which a preferred share purchase rights offering would occur, which would significantly dilute the ownership of the acquirer.

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(4))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 4

-Article 4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
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X

- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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X

- Definition

Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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