3. Loans, Allowance for Loan Losses (Details) (USD $) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for loan losses
Beginning balance	$ 7,550	$ 9,589	$ 11,082
Charge-offs	(982)	(1,238)	(1,844)
Recoveries	305	405	368
Provision	(507)	(1,206)	(17)
Ending balance	6,366	7,550	9,589
Ending balance: individually evaluated for impairments	1,130	1,319	1,382
Ending balance: collectively evaluated for impairments	5,236	6,231	8,207
Ending balance	6,366	7,550	9,589
Loans
Ending balance	759,764	723,811	689,091
Ending balance: individually evaluated for impairment	19,764	21,301	24,914
Ending balance: collectively evaluated for impairment	740,000	702,510	664,177
Construction and land development
Allowance for loan losses
Beginning balance	1,152	2,185	2,785
Charge-offs	0	(7)	(198)
Recoveries	14	10	45
Provision	(362)	(1,036)	(447)
Ending balance	804	1,152	2,185
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	804	1,152	2,185
Ending balance	804	1,152	2,185
Loans
Ending balance	84,987	61,749	65,791
Ending balance: individually evaluated for impairment	98	0	216
Ending balance: collectively evaluated for impairment	84,889	61,749	65,575
Single-family residential
Allowance for loan losses
Beginning balance	2,126	2,534	2,566
Charge-offs	(249)	(275)	(618)
Recoveries	85	55	34
Provision	(150)	(188)	552
Ending balance	1,812	2,126	2,534
Ending balance: individually evaluated for impairments	0	0	96
Ending balance: collectively evaluated for impairments	1,812	2,126	2,438
Ending balance	1,812	2,126	2,534
Loans
Ending balance	246,703	240,700	220,690
Ending balance: individually evaluated for impairment	1,855	935	2,636
Ending balance: collectively evaluated for impairment	244,848	239,765	218,054
Single-family residential - Banco de la Gente stated income
Allowance for loan losses
Beginning balance	1,377	1,460	1,610
Charge-offs	0	0	(117)
Recoveries	0	0	22
Provision	(97)	(83)	(55)
Ending balance	1,280	1,377	1,460
Ending balance: individually evaluated for impairments	1,093	1,160	1,115
Ending balance: collectively evaluated for impairments	187	217	345
Ending balance	1,280	1,377	1,460
Loans
Ending balance	37,249	40,189	43,733
Ending balance: individually evaluated for impairment	15,460	16,718	17,850
Ending balance: collectively evaluated for impairment	21,789	23,471	25,883
Commercial
Allowance for loan losses
Beginning balance	1,593	1,917	1,902
Charge-offs	0	(318)	(329)
Recoveries	21	19	21
Provision	(421)	(25)	323
Ending balance	1,193	1,593	1,917
Ending balance: individually evaluated for impairments	37	159	171
Ending balance: collectively evaluated for impairments	1,156	1,434	1,746
Ending balance	1,193	1,593	1,917
Loans
Ending balance	248,637	247,521	228,526
Ending balance: individually evaluated for impairment	2,251	3,648	4,212
Ending balance: collectively evaluated for impairment	246,386	243,873	224,314
Multifamily and Farmland
Allowance for loan losses
Beginning balance	52	0	7
Charge-offs	(66)	0	0
Recoveries	0	0	0
Provision	86	52	(7)
Ending balance	72	52	0
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	72	52	0
Ending balance	72	52	0
Loans
Ending balance	28,937	21,047	18,080
Ending balance: individually evaluated for impairment	0	0	0
Ending balance: collectively evaluated for impairment	28,937	21,047	18,080
Commercial loans (not secured by real estate)
Allowance for loan losses
Beginning balance	675	842	1,098
Charge-offs	(194)	(146)	(37)
Recoveries	31	170	101
Provision	62	(191)	(320)
Ending balance	574	675	842
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	574	675	842
Ending balance	574	675	842
Loans
Ending balance	89,022	87,596	91,010
Ending balance: individually evaluated for impairment	100	0	0
Ending balance: collectively evaluated for impairment	88,922	87,596	91,010
Farm loans (not secured by real estate)
Allowance for loan losses
Beginning balance	0	0	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	0	0	0
Ending balance	0	0	0
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	0	0	0
Ending balance	0	0	0
Loans
Ending balance	1,204	0	3
Ending balance: individually evaluated for impairment	0	0	0
Ending balance: collectively evaluated for impairment	1,204	0	3
Consumer And All Other Loans
Allowance for loan losses
Beginning balance	204	172	233
Charge-offs	(473)	(492)	(545)
Recoveries	154	151	145
Provision	270	373	339
Ending balance	155	204	172
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	155	204	172
Ending balance	155	204	172
Loans
Ending balance	23,025	25,009	21,258
Ending balance: individually evaluated for impairment	0	0	0
Ending balance: collectively evaluated for impairment	23,025	25,009	21,258
Unallocated
Allowance for loan losses
Beginning balance	371	479	881
Charge-offs	0	0	0
Recoveries	0	0	0
Provision	105	(108)	(402)
Ending balance	476	371	479
Ending balance: individually evaluated for impairments	0	0	0
Ending balance: collectively evaluated for impairments	476	371	479
Ending balance	476	371	479
Loans
Ending balance	0	0	0
Ending balance: individually evaluated for impairment	0	0	0
Ending balance: collectively evaluated for impairment	$ 0	$ 0	$ 0

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

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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.

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