Loans - Components of loans (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Components of loans
Total Loans, Gross	$ 2,002,817	$ 1,912,038
Allowance for Loan Losses	(24,585)	(22,526)	$ (20,607)	$ (20,031)
Net Deferred Loan Fees	(5,336)	(5,512)
Total Loans, Net	1,972,896	1,884,000
Commercial
Components of loans
Total Loans, Gross	299,425	276,035
Allowance for Loan Losses	(3,557)	(3,058)	(3,361)	(2,898)
Construction and Land Development
Components of loans
Total Loans, Gross	183,350	196,776
Allowance for Loan Losses	(2,131)	(2,202)	(2,097)	(2,451)
Real Estate Mortgage
Components of loans
Total Loans, Gross	1,515,718	1,434,754
1-4 Family Mortgage
Components of loans
Total Loans, Gross	272,590	260,611
Allowance for Loan Losses	(3,202)	(2,839)	(2,611)	(2,597)
Multifamily
Components of loans
Total Loans, Gross	536,380	515,014
Allowance for Loan Losses	(6,556)	(5,824)	(4,715)	(4,644)
CRE Owner Occupied
Components of loans
Total Loans, Gross	75,207	66,584
Allowance for Loan Losses	(938)	(792)	(790)	(808)
CRE Non-owner Occupied
Components of loans
Total Loans, Gross	631,541	592,545
Allowance for Loan Losses	(8,003)	(6,972)	(6,349)	(5,872)
Consumer and other
Components of loans
Total Loans, Gross	4,324	4,473
Allowance for Loan Losses	$ (92)	$ (85)	$ (61)	$ (65)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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