The percentage rate used to calculate dividend payments on common stock.

No definition available.

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- Definition

Number of additional shares issued for every 9 shares owned as part of a common stock dividend.

+ References

No definition available.

+ Details

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- Definition

Ratio applied to the additional shares issued for a common stock dividend, for example but not limited to, one share issued for every 9 shares owned.

+ References

No definition available.

+ Details

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- Details

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ 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)(2))

-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 2

-Article 4

+ Details

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

+ Details

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

+ Details

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- Definition

The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1H

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826

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- Definition

The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

+ Details

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

+ Details

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- Details

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Note 21 - Regulatory Matters (Details) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended	10 Months Ended
Note 21 - Regulatory Matters (Details) (USD $)	Oct. 22, 2014	Dec. 31, 2014	Jun. 13, 2014	Dec. 31, 2014	Mar. 21, 2014	Mar. 20, 2014	Dec. 31, 2013	Feb. 19, 2015	Mar. 13, 2015	Feb. 20, 2014	Feb. 19, 2014
Note 21 - Regulatory Matters (Details) [Line Items]
Tier One Leverage Capital Required for Capital Adequacy to Average Assets							4.00%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets
Common Stock, Shares Authorized		100,000,000us-gaap_CommonStockSharesAuthorized		100,000,000us-gaap_CommonStockSharesAuthorized	100,000,000us-gaap_CommonStockSharesAuthorized	30,000,000us-gaap_CommonStockSharesAuthorized	30,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, Dividend Rate, Percentage	11.00%bsf_CommonStockDividendRatePercentage	11.00%bsf_CommonStockDividendRatePercentage
Common Stock Dividends, Additional Shares Issued	1	9
Common Stock Dividends, Addtional Share Conversion Ratio	9
Affiliated Entity [Member] \| Private Placement [Member] \| First National Security Company Acquisition [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Stock Issued During Period, Shares, New Issues			2,531,645
Sale of Stock, Price Per Share (in Dollars per share)			$ 7.90
Subsequent Event [Member] \| 2014 Share Repurchase Program [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount (in Dollars)								$ 995,485
Subsequent Event [Member] \| 2015 Share Repurchase Program [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Stock Repurchase Program, Authorized Amount (in Dollars)									1,000,000
First National Security Company Acquisition [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights			177,215
Minimum [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Tier One Leverage Capital Required for Capital Adequacy to Average Assets										8.00%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets										12.00%
2014 Share Repurchase Program [Member]
Note 21 - Regulatory Matters (Details) [Line Items]
Treasury Stock, Shares, Acquired				500
Stock Repurchase Program, Authorized Amount (in Dollars)											$ 1,000,000