Debt Securities (Details Textual)	3 Months Ended
Mar. 31, 2020 USD ($) security
Investments, Debt and Equity Securities [Abstract]
Severity rate on available-for-sale debt securities in an unrealized loss position	5.00%
Number of credit rating categories, highest \| security	4
Available-for-sale debt securities past due	$ 0
Interest receivable, available-for-sale debt securities	22,632,000
PCD debt securities acquired	0
ACL on PCD debt securities acquired	0
ACL on available-for-sale debt securities	0
Held-to-maturity debt securities past due	0
Interest receivable, held-to-maturity debt securities	2,177,000
ACL on held-to-maturity debt securities	$ 0

Available-for-sale, Securities in Unrealized Loss Positions, Severity Rate

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- Definition

Amount of investment in debt security measured at amortized cost (available-for-sale), past due.

+ References

No definition available.

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Carrying amount as of the balance sheet date of interest earned but not received on available-for-sale debt securities.

+ References

No definition available.

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Carrying amount as of the balance sheet date of interest earned but not received on held-to-maturity debt securities.

+ References

No definition available.

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- Definition

Number of credit rating categories, highest

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on 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 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of allowance for credit loss at acquisition date of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 10
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-URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922903-210455

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- Definition

Amount at par value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), purchased with credit deterioration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity), past due.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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