Non Purchased Loans - Changes in Restructured Loans (Details) - Non-Purchased $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Changes in restructured loans [Roll Forward]
Beginning balance (loans) | loan	46	51
Additional advances or loans with concessions (loans) | loan	38	7
Reclassified from nonperforming (loans) | loan	3	5
Reductions due to:
Reclassified as nonperforming (loans) | loan	(5)	(9)
Paid in full (loans) | loan	(6)	(8)
Principal paydowns (loans) | loan	0	0
Ending balance (loans) | loan	76	46
Recorded Investment
Beginning balance | $	$ 4,679	$ 5,325
Additional advances or loans with concessions | $	9,155	661
Reclassified as performing | $	354	252
Reductions due to:
Restructured Loans Reclassified as Non-performing | $	(758)	(808)
Paid in full | $	(1,409)	(581)
Principal paydowns | $	(260)	(170)
Ending balance | $	$ 11,761	$ 4,679