Consolidated Statements of Financial Condition (Parenthetical) $ in Thousands		Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Assets [Abstract]
Allowance for loan losses | $	[1]	$ 6,899	$ 4,388
Stockholders' Equity:
Treasury stock, shares (in shares)		327,228	327,228
Non-Cumulative Redeemable Perpetual Preferred Stock, Series C [Member]
Stockholders' Equity:
Preferred stock, shares authorized (in shares)		150,000	150,000
Preferred stock, shares issued (in shares)		150,000	150,000
Preferred stock, shares outstanding (in shares)		150,000	150,000
Preferred stock, liquidation value (in dollars per share) | $ / shares		$ 1,000	$ 1,000
Class A Voting Common Stock [Member]
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	[2]	75,000,000	75,000,000
Common stock, shares issued (in shares)	[2]	6,411,777	6,408,151
Common stock, shares outstanding (in shares)	[2]	6,170,648	6,080,745
Class B Non-Voting Common Stock [Member]
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	[2]	15,000,000	15,000,000
Common stock, shares issued (in shares)	[2]	1,425,574	1,425,574
Common stock, shares outstanding (in shares)	[2]	1,425,574	1,425,574
Class C Non-Voting Common Stock [Member]
Stockholders' Equity:
Common stock, par value (in dollars per share) | $ / shares		$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	[2]	25,000,000	25,000,000
Common stock, shares issued (in shares)	[2]	1,672,562	1,672,562
Common stock, shares outstanding (in shares)	[2]	1,672,562	1,672,562

[1] The allowance for credit losses as of December 31, 2022 was accounted for under ASC 450 and ASC 310, which is reflective of probable incurred losses as of the date of the consolidated statement of financial condition. Effective January 1, 2023, the allowance for credit losses is accounted for under ASC 326, which is reflective of estimated expected lifetime credit losses.

[2] Retroactively adjusted for the 1-for-8 reverse stock split effective November 1, 2023 - see Note 1