Amount of amortization expense attributable to debt issuance costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Subordinated debt (Details) - USD ($)		12 Months Ended
Subordinated debt (Details) - USD ($)	Sep. 28, 2018	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Net proceeds from subordinated debt		$ 39,158,444	$ 0
Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 40,000,000
Net proceeds from subordinated debt		12,000,000
Interest rate	5.625%
Debt issuance costs	$ 842,000	823,000
Amortization expense of debt issuance costs		$ 19,000
Subordinated Debt [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)		2.55%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Repayment of line of credit	$ 15,000,000