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Investments - Textual (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) security	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) security	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Schedule of Available-for-sale Securities
Available-for-sale Securities pledged as collateral | $	$ 109,802,000		$ 109,802,000
Unrealized gain (loss) of available-for sale securities | $	10,538,000		10,538,000		$ 3,999,000
AOCI available-for-sale securities adjustment tax | $	3,115,000		3,115,000		1,182,000
Income tax impact from the reclassification of unrealized net gains on available-for-sale securities to realized net gains on available-for-sale securities | $	(17,000)	$ 727,000	$ 1,224,000	$ 1,038,000
Threshold period of value decline in available-for-sale securities to be considered other than temporary impairment			12 months
Threshold percentage of value decline in available-for-sale securities to be considered other than temporary impairment			10.00%
Threshold amount of value decline in available-for-sale securities to be considered other than temporary impairment | $			$ 10,000
Other than temporary impairment losses on investment securities | $			0
Debt securities, amortized cost | $	$ 533,964,000		$ 533,964,000
U.S. Government agencies
Schedule of Available-for-sale Securities
Available-for-sale securities, number of positions | security	11		11
Debt securities, amortized cost | $	$ 42,085,000		$ 42,085,000		14,740,000
U.S. Government agencies | Less than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	5		5
U.S. Government agencies | Greater than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	5		5
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities
Available-for-sale securities, number of positions | security	74		74
Debt securities, amortized cost | $	$ 219,024,000		$ 219,024,000		89,574,000
Obligations of states and political subdivisions | Less than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	12		12
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations
Schedule of Available-for-sale Securities
Available-for-sale securities, number of positions | security	113		113
Debt securities, amortized cost | $	$ 201,373,000		$ 201,373,000		198,125,000
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations | Less than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	7		7
U.S. Government sponsored entities and agencies collateralized by residential mortgage obligations | Greater than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	19		19
Private label mortgage and asset backed securities
Schedule of Available-for-sale Securities
Available-for-sale securities, number of positions | security	23		23
Debt securities, amortized cost | $	$ 52,482,000		$ 52,482,000		155,308,000
Private label mortgage and asset backed securities | Less than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	7		7
Private label mortgage and asset backed securities | Greater than 12 months
Schedule of Available-for-sale Securities
Available-for-sale securities in unrealized loss positions, number of positions | security	0		0
Corporate debt securities
Schedule of Available-for-sale Securities
Available-for-sale securities, number of positions | security	4		4
Debt securities, amortized cost | $	$ 19,000,000		$ 19,000,000		$ 9,000,000

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