Fair Value Disclosures - Carrying amounts and estimated fair value of our financial instruments (Details) - Non recurring - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value Disclosures
Total assets	$ 0	$ 0
Carrying Amount | Deposits- liabilities
Fair Value Disclosures
Financial Liabilities	928,600	927,164
Carrying Amount | FHLB of New York advances
Fair Value Disclosures
Financial Liabilities	21,000	28,000
Carrying Amount | Cash and cash equivalents
Fair Value Disclosures
Total assets	86,227	152,269
Carrying Amount | Certificates of deposit.
Fair Value Disclosures
Total assets	100	100
Carrying Amount | Marketable equity securities
Fair Value Disclosures
Total assets	18,879	19,943
Carrying Amount | Securities available for sale
Fair Value Disclosures
Total assets	1	1
Carrying Amount | Securities held to maturity
Fair Value Disclosures
Total assets	27,189	17,880
Carrying Amount | Loans receivable, net
Fair Value Disclosures
Total assets	1,018,682	968,093
Carrying Amount | Investments in restricted stock
Fair Value Disclosures
Total assets	1,238	1,569
Carrying Amount | Accrued interest receivable
Fair Value Disclosures
Total assets	5,232	4,283
Fair Value | Deposits- liabilities
Fair Value Disclosures
Financial Liabilities	926,234	929,003
Fair Value | FHLB of New York advances
Fair Value Disclosures
Financial Liabilities	19,987	28,283
Fair Value | Cash and cash equivalents
Fair Value Disclosures
Total assets	86,227	152,269
Fair Value | Certificates of deposit.
Fair Value Disclosures
Total assets	100	100
Fair Value | Marketable equity securities
Fair Value Disclosures
Total assets	18,879	19,943
Fair Value | Securities available for sale
Fair Value Disclosures
Total assets	1	1
Fair Value | Securities held to maturity
Fair Value Disclosures
Total assets	24,385	17,620
Fair Value | Loans receivable, net
Fair Value Disclosures
Total assets	1,009,632	968,247
Fair Value | Investments in restricted stock
Fair Value Disclosures
Total assets	1,238	1,569
Fair Value | Accrued interest receivable
Fair Value Disclosures
Total assets	5,232	4,283
Level 1 | Fair Value | Cash and cash equivalents
Fair Value Disclosures
Total assets	86,227	152,269
Level 1 | Fair Value | Marketable equity securities
Fair Value Disclosures
Total assets	18,879	19,943
Level 2 | Fair Value | Deposits- liabilities
Fair Value Disclosures
Financial Liabilities	926,234	929,003
Level 2 | Fair Value | FHLB of New York advances
Fair Value Disclosures
Financial Liabilities	19,987	28,283
Level 2 | Fair Value | Certificates of deposit.
Fair Value Disclosures
Total assets	100	100
Level 2 | Fair Value | Securities available for sale
Fair Value Disclosures
Total assets	1	1
Level 2 | Fair Value | Securities held to maturity
Fair Value Disclosures
Total assets	24,385	17,620
Level 2 | Fair Value | Investments in restricted stock
Fair Value Disclosures
Total assets	1,238	1,569
Level 2 | Fair Value | Accrued interest receivable
Fair Value Disclosures
Total assets	5,232	4,283
Level 3 | Fair Value | Loans receivable, net
Fair Value Disclosures
Total assets	$ 1,009,632	$ 968,247