Fair Value Measurements and Disclosures - Financial assets measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value Measurements and Disclosures
Securities available for sale	$ 50,440	$ 50,428
Mortgage loans held-for-investment	12,751	11,422
State and municipal securities
Fair Value Measurements and Disclosures
Securities available for sale	11,125	10,919
Investments in mutual funds and other equity securities
Fair Value Measurements and Disclosures
Securities available for sale	992	979
Interest rate lock commitments
Fair Value Measurements and Disclosures
Derivative assets, Fair value	329
Recurring
Fair Value Measurements and Disclosures
Mortgage loans held-for-sale	29,612	37,695
Mortgage loans held-for-investment	12,751	11,422
Total	93,362	99,996
Recurring \| U.S. government agency mortgage-backed securities
Fair Value Measurements and Disclosures
Securities available for sale	22,918	23,866
Recurring \| U.S. government agency collateralized mortgage obligations
Fair Value Measurements and Disclosures
Securities available for sale	15,405	14,664
Recurring \| State and municipal securities
Fair Value Measurements and Disclosures
Securities available for sale	11,125	10,919
Recurring \| Investments in mutual funds and other equity securities
Fair Value Measurements and Disclosures
Securities available for sale	992	979
Recurring \| Interest rate lock commitments
Fair Value Measurements and Disclosures
Derivative assets, Fair value	330	310
Recurring \| Customer derivatives - Interest rate swaps
Fair Value Measurements and Disclosures
Derivative assets, Fair value	229	141
Recurring \| Level 2
Fair Value Measurements and Disclosures
Mortgage loans held-for-sale	29,612	37,695
Mortgage loans held-for-investment	12,751	11,422
Total	93,032	99,686
Recurring \| Level 2 \| U.S. government agency mortgage-backed securities
Fair Value Measurements and Disclosures
Securities available for sale	22,918	23,866
Recurring \| Level 2 \| U.S. government agency collateralized mortgage obligations
Fair Value Measurements and Disclosures
Securities available for sale	15,405	14,664
Recurring \| Level 2 \| State and municipal securities
Fair Value Measurements and Disclosures
Securities available for sale	11,125	10,919
Recurring \| Level 2 \| Investments in mutual funds and other equity securities
Fair Value Measurements and Disclosures
Securities available for sale	992	979
Recurring \| Level 2 \| Customer derivatives - Interest rate swaps
Fair Value Measurements and Disclosures
Derivative assets, Fair value	229	141
Recurring \| Level 3
Fair Value Measurements and Disclosures
Total	330	310
Recurring \| Level 3 \| Interest rate lock commitments
Fair Value Measurements and Disclosures
Derivative assets, Fair value	$ 330	$ 310

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

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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

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