XML 60 R50.htm IDEA: XBRL DOCUMENT v3.5.0.2

Allowance for Loan and Lease Losses (Activity in Allowance for Loan and Lease Losses) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2016	Dec. 31, 2015
Allowance for credit losses:
Beginning Balance	$ 10,030	$ 10,423	$ 11,248
Charge-offs	(631)	(1,439)	(2,840)
Recoveries	643	1,058	2,015
Provision	0	0	0
Ending Balance	10,042	10,042	10,423
Reserves:
Specific				$ 3,327	$ 3,915
General				6,715	6,508
Ending Balance	10,042	10,423	10,423	10,042	10,423
Loans evaluated for impairment:
Individually				24,043	25,521
Collectively				1,131,219	1,107,335
Ending Balance				1,155,262	1,132,856
Unallocated [Member]
Allowance for credit losses:
Beginning Balance	1,128	1,122	310
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	(969)	(963)	812
Ending Balance	159	159	1,122
Reserves:
Specific				0	0
General				159	1,122
Ending Balance	159	1,122	1,122	159	1,122
Loans evaluated for impairment:
Individually				0	0
Collectively				0	0
Ending Balance				0	0
Agricultural Products [Member]
Allowance for credit losses:
Beginning Balance	567	722	986
Charge-offs	0	0	0
Recoveries	2	4	81
Provision	(153)	(310)	(345)
Ending Balance	416	416	722
Reserves:
Specific				0	0
General				416	722
Ending Balance	416	722	722	416	722
Loans evaluated for impairment:
Individually				65	0
Collectively				49,958	46,237
Ending Balance				50,023	46,237
Commercial and Industrial [Member]
Allowance for credit losses:
Beginning Balance	2,503	2,533	1,944
Charge-offs	(66)	(174)	(395)
Recoveries	39	160	225
Provision	1,265	1,222	759
Ending Balance	3,741	3,741	2,533
Reserves:
Specific				591	683
General				3,150	1,850
Ending Balance	3,741	2,533	2,533	3,741	2,533
Loans evaluated for impairment:
Individually				2,293	2,588
Collectively				307,168	290,974
Ending Balance				111,746	113,207
Consumer Loan [Member]
Allowance for credit losses:
Beginning Balance	1,119	1,263	1,765
Charge-offs	(494)	(985)	(1,739)
Recoveries	266	497	958
Provision	353	469	279
Ending Balance	1,244	1,244	1,263
Reserves:
Specific				302	343
General				942	920
Ending Balance	1,244	1,263	1,263	1,244	1,263
Loans evaluated for impairment:
Individually				1,962	2,037
Collectively				11,656	12,912
Ending Balance				13,618	14,949
Real Estate Loan [Member]
Allowance for credit losses:
Beginning Balance	4,713	4,783	6,243
Charge-offs	(71)	(280)	(706)
Recoveries	336	397	751
Provision	(496)	(418)	(1,505)
Ending Balance	4,482	4,482	4,783
Reserves:
Specific				2,434	2,889
General				2,048	1,894
Ending Balance	$ 4,482	$ 4,783	$ 4,783	4,482	4,783
Loans evaluated for impairment:
Individually				19,723	20,896
Collectively				762,437	757,212
Ending Balance				$ 782,160	$ 778,108

X

- Definition

Represents financing receivable, allowance for credit losses, general reserves.

+ References

No definition available.

+ Details

Name:	bsrr_FinancingReceivableAllowanceForCreditLossesGeneralReserves
Namespace Prefix:	bsrr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents financing receivable, allowance for credit losses, specific reserves.

+ References

No definition available.

+ Details

Name:	bsrr_FinancingReceivableAllowanceForCreditLossesSpecificReserves
Namespace Prefix:	bsrr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	bsrr_FinancingReceivableReservesAbstract
Namespace Prefix:	bsrr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

A valuation allowance for financing receivables that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(4)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

+ Details

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

X

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

+ Details

Name:	us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

+ Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_UnallocatedFinancingReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=bsrr_AgriculturalProductsLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ConsumerLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: