Premises and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 24,575		$ 21,332
Less: Accumulated depreciation	7,902		7,494
Net premises and equipment	16,673		13,838
Depreciation expenses	413	$ 327
Operating lease, rent expense	461	$ 297
Land
Property, Plant and Equipment [Line Items]
Total premises and equipment	3,514		2,254
Buildings
Property, Plant and Equipment [Line Items]
Total premises and equipment	10,625		9,825
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total premises and equipment	3,341		2,714
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 7,095		$ 6,539