Investment securities available for sale - Amortized cost and fair value of investment securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 141,568	$ 95,606
Gross Unrealized Gains	79	414
Gross Unrealized Losses	(10,024)	(1,321)
Fair Value	131,623	94,699
U.S. Government agencies obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	61,034	41,513
Gross Unrealized Gains		22
Gross Unrealized Losses	(2,914)	(536)
Fair Value	58,120	40,999
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	65,760	40,806
Gross Unrealized Gains		302
Gross Unrealized Losses	(6,122)	(613)
Fair Value	59,638	40,495
Municipals
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,270	2,271
Gross Unrealized Losses	(565)	(62)
Fair Value	1,705	2,209
Subordinated debt
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,504	11,016
Gross Unrealized Gains	79	90
Gross Unrealized Losses	(423)	(110)
Fair Value	$ 12,160	$ 10,996

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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