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Fair Value of Financial Instruments and Fair Value Measurements - Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Commercial Real Estate [Member] |  |
Impaired Loans Fair Value Disclosure |  | $ 219
Fair Value Measurements, Valuation Techniques |  | Sales comparison
Fair Value Measurements, Changes in Valuation Techniques |  | Adjustment to appraised value
Minimum [Member] | Commercial Real Estate [Member] |  |
Fair Value Measurements Sales Comparison Range |  | 2.00%
Maximum [Member] | Commercial Real Estate [Member] |  |
Fair Value Measurements Sales Comparison Range |  | 15.00%
Commercial Loan [Member] |  |
Impaired Loans Fair Value Disclosure | $ 177 |
Fair Value Measurements, Valuation Techniques | Sales comparison |
Fair Value Measurements, Changes in Valuation Techniques | Adjustment to comparable sales |
Commercial Loan [Member] | Minimum [Member] |  |
Fair Value Measurements Sales Comparison Range | 0.00% |
Commercial Loan [Member] | Maximum [Member] |  |
Fair Value Measurements Sales Comparison Range | 50.00% |
Agriculture Loans [Member] |  |
Impaired Loans Fair Value Disclosure | $ 670 | $ 645
Fair Value Measurements, Valuation Techniques | Sales comparison | Sales comparison
Fair Value Measurements, Changes in Valuation Techniques | Adjustment to appraised value | Adjustment to comparable sales
Agriculture Loans [Member] | Minimum [Member] |  |
Fair Value Measurements Sales Comparison Range | 10.00% | 8.00%
Agriculture Loans [Member] | Maximum [Member] |  |
Fair Value Measurements Sales Comparison Range | 50.00% | 80.00%
One-to-four family residential real estate [Member] |  |
Impaired Loans Fair Value Disclosure |  | $ 142
Real Estate Owned Fair Value Disclosure | $ 302 |
Fair Value Measurements, Valuation Techniques | Sales comparison | Sales comparison
Fair Value Measurements, Changes in Valuation Techniques | Adjustment to appraised value | Adjustment to appraised value
Fair Value Measurements Sales Comparison Range | 10.00% | 10.00%
Consumer Loan [Member] |  |
Impaired Loans Fair Value Disclosure |  | $ 222
Fair Value Measurements, Valuation Techniques |  | Sales comparison
Fair Value Measurements, Changes in Valuation Techniques |  | Adjustment to comparable sales
Consumer Loan [Member] | Minimum [Member] |  |
Fair Value Measurements Sales Comparison Range |  | 7.00%
Consumer Loan [Member] | Maximum [Member] |  |
Fair Value Measurements Sales Comparison Range |  | 80.00%

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- Definition The range of Level 3 fair value measurements for impaired loans measured at fair value on a non-recurring basis. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as impaired loans disclosure. + References No definition available. + Details
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- Definition Represents the amount of real estate owned fair value disclosure. + References No definition available. + Details
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Balance Type: | debit
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- Definition Description of the changes in valuation technique(s) and related inputs used to measure fair value. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Description of the inputs and valuation technique(s) used to measure fair value. + 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 (bbb) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Details
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