6. Fair Value, Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents	$ 67,834	$ 53,186
Investment securities available for sale	213,299	229,321
Other investments	1,834	1,830
Mortgage loans held for sale	503	857
Loans, net	759,451	753,398
Cash surrender value of life insurance	15,647	15,552
Liabilities:
Deposits	907,624	906,952
Securities sold under agreements to repurchase	38,257	37,757
Junior subordinated debentures	20,619	20,619
Estimated Fair Value
Assets:
Cash and cash equivalents	67,834	53,186
Investment securities available for sale	213,299	229,321
Other investments	1,834	1,830
Mortgage loans held for sale	503	857
Loans, net	738,009	735,837
Cash surrender value of life insurance	15,647	15,552
Liabilities:
Deposits	891,109	894,932
Securities sold under agreements to repurchase	38,257	37,757
Junior subordinated debentures	20,619	20,619
Level 1
Assets:
Cash and cash equivalents	67,834	53,186
Investment securities available for sale	0	0
Other investments	0	0
Mortgage loans held for sale	0	0
Loans, net	0	0
Cash surrender value of life insurance	0	0
Liabilities:
Deposits	0	0
Securities sold under agreements to repurchase	0	0
Junior subordinated debentures	0	0
Level 2
Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	213,049	229,071
Other investments	0	0
Mortgage loans held for sale	0	0
Loans, net	0	0
Cash surrender value of life insurance	15,647	15,552
Liabilities:
Deposits	0	0
Securities sold under agreements to repurchase	38,257	37,757
Junior subordinated debentures	20,619	20,619
Level 3
Assets:
Cash and cash equivalents	0	0
Investment securities available for sale	250	250
Other investments	1,834	1,830
Mortgage loans held for sale	503	857
Loans, net	738,009	735,837
Cash surrender value of life insurance	0	0
Liabilities:
Deposits	891,109	894,932
Securities sold under agreements to repurchase	0	0
Junior subordinated debentures	$ 0	$ 0

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=75030427&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26610-111562

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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Fair value portion of mortgage loans held-for-sale.

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Fair value portion of other assets.

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Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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