3. Loans, Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Allowance for loan losses
Beginning balance	$ 7,550	$ 9,589
Charge-offs	(131)	(322)
Recoveries	80	65
Provision	(236)	(216)
Ending balance	7,263	9,116
Ending balance: individually evaluated for impairments	1,182	1,372
Ending balance: collectively evaluated for impairments	6,081	7,744
Ending balance	7,263	9,116
Loans
Ending balance	735,861	693,033
Ending balance: individually evaluated for impairment	20,669	25,213
Ending balance: collectively evaluated for impairment	715,192	667,820
Construction and land development
Allowance for loan losses
Beginning balance	1,152	2,185
Charge-offs	0	0
Recoveries	8	3
Provision	(191)	(344)
Ending balance	969	1,844
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	969	1,844
Ending balance	969	1,844
Loans
Ending balance	65,438	63,973
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	65,438	63,973
Single-family residential
Allowance for loan losses
Beginning balance	2,126	2,534
Charge-offs	(20)	(59)
Recoveries	7	8
Provision	(110)	(8)
Ending balance	2,003	2,475
Ending balance: individually evaluated for impairments	0	95
Ending balance: collectively evaluated for impairments	2,003	2,380
Ending balance	2,003	2,475
Loans
Ending balance	239,322	223,104
Ending balance: individually evaluated for impairment	1,630	2,612
Ending balance: collectively evaluated for impairment	237,692	220,492
Single-family residential - Banco de la Gente stated income
Allowance for loan losses
Beginning balance	1,377	1,460
Charge-offs	0	0
Recoveries	0	0
Provision	(49)	(37)
Ending balance	1,328	1,423
Ending balance: individually evaluated for impairments	1,120	1,107
Ending balance: collectively evaluated for impairments	208	316
Ending balance	1,328	1,423
Loans
Ending balance	39,230	42,951
Ending balance: individually evaluated for impairment	16,303	17,711
Ending balance: collectively evaluated for impairment	22,927	25,240
Commercial
Allowance for loan losses
Beginning balance	1,593	1,917
Charge-offs	0	(106)
Recoveries	7	5
Provision	55	(28)
Ending balance	1,655	1,788
Ending balance: individually evaluated for impairments	62	170
Ending balance: collectively evaluated for impairments	1,593	1,618
Ending balance	1,655	1,788
Loans
Ending balance	247,940	228,166
Ending balance: individually evaluated for impairment	2,736	4,890
Ending balance: collectively evaluated for impairment	245,204	223,276
Multifamily and Farmland
Allowance for loan losses
Beginning balance	52	0
Charge-offs	0	0
Recoveries	0	0
Provision	21	0
Ending balance	73	0
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	73	0
Ending balance	73	0
Loans
Ending balance	29,078	18,122
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	29,078	18,122
Commercial loans (not secured by real estate)
Allowance for loan losses
Beginning balance	675	842
Charge-offs	(2)	(29)
Recoveries	8	6
Provision	(53)	(9)
Ending balance	628	810
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	628	810
Ending balance	628	810
Loans
Ending balance	90,923	91,784
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	90,923	91,784
Farm loans (not secured by real estate)
Allowance for loan losses
Beginning balance	0	0
Charge-offs	0	0
Recoveries	0	0
Provision	0	0
Ending balance	0	0
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	0	0
Ending balance	0	0
Loans
Ending balance	897	2
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	897	2
Consumer And All Other Loans
Allowance for loan losses
Beginning balance	204	172
Charge-offs	(109)	(128)
Recoveries	50	43
Provision	33	103
Ending balance	178	190
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	178	190
Ending balance	178	190
Loans
Ending balance	23,033	24,931
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	23,033	24,931
Unallocated
Allowance for loan losses
Beginning balance	371	479
Charge-offs	0	0
Recoveries	0	0
Provision	58	107
Ending balance	429	586
Ending balance: individually evaluated for impairments	0	0
Ending balance: collectively evaluated for impairments	429	586
Ending balance	429	586
Loans
Ending balance	0	0
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	$ 0	$ 0

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Loans Receivable [Abstract]

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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

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

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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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