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Fair Value Disclosures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Assets: |  |
Securities available-for-sale, at fair value | $ 174,114 | $ 201,688
Liabilities: |  |
Noninterest-bearing demand deposits | 357,220 | 319,861
Interest-bearing demand deposits | 333,705 | 311,482
Time deposits | 673,243 | 648,676
Derivative financial instruments | 3,411 |
Level 1 [Member] |  |
Assets: |  |
Cash and cash equivalents | 199,534 | 115,822
Level 2 [Member] |  |
Assets: |  |
Securities available-for-sale, at fair value | 174,114 | 201,688
Liabilities: |  |
Noninterest-bearing demand deposits | 357,220 | 319,861
Interest-bearing demand deposits | 333,705 | 311,482
Money market and savings deposits | 648,132 | 641,945
Time deposits | 674,278 | 649,169
Securities sold under agreements to repurchase | 8,219 | 11,756
Federal Home Loan Bank advances and other borrowings | 15,460 | 11,243
Derivative financial instruments | 3,411 | 1,174
Level 3 [Member] |  |
Assets: |  |
Loans, net | 1,822,099 | 1,766,838
Liabilities: |  |
Subordinated debt | 37,618 | 39,190
Carrying Amount [Member] |  |
Assets: |  |
Cash and cash equivalents | 199,534 | 115,822
Securities available-for-sale, at fair value | 174,114 | 201,688
Other investments | 12,905 | 11,499
Loans, net | 1,827,892 | 1,768,964
Liabilities: |  |
Noninterest-bearing demand deposits | 357,220 | 319,861
Interest-bearing demand deposits | 333,705 | 311,482
Money market and savings deposits | 648,132 | 641,945
Time deposits | 673,243 | 648,676
Securities sold under agreements to repurchase | 8,219 | 11,756
Federal Home Loan Bank advances and other borrowings | 15,460 | 11,243
Subordinated debt | 39,219 | 39,177
Derivative financial instruments |  | 1,174
Estimated Fair Value [Member] |  |
Assets: |  |
Cash and cash equivalents | 199,534 | 115,822
Securities available-for-sale, at fair value | 174,114 | 201,688
Loans, net | 1,822,099 | 1,766,838
Liabilities: |  |
Noninterest-bearing demand deposits | 357,220 | 319,861
Interest-bearing demand deposits | 333,705 | 311,482
Money market and savings deposits | 648,132 | 641,945
Time deposits | 674,278 | 649,169
Securities sold under agreements to repurchase | 8,219 | 11,756
Federal Home Loan Bank advances and other borrowings | 15,460 | 11,243
Subordinated debt | 37,618 | 39,190
Derivative financial instruments | $ 3,411 | $ 1,174

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- Definition 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 -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26610-111562 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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- Definition 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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