Fair Value Measurements - Financial instruments carried at fair value on recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	$ 1,973	$ 2,168
Available for sale securities	95,095	90,198
Derivative asset	13,187	3,604
Derivative liability	4,328	17,338
U.S. Government and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	79,437	75,189
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	1,973	2,168
Available for sale securities	41,605	25,569
Derivative asset	0	0
Derivative liability	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	0	0
Available for sale securities	53,490	64,629
Derivative asset	12,987	3,628
Derivative liability	4,310	16,780
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	0	0
Available for sale securities	0	0
Derivative asset	0	0
Derivative liability	0	0
Fair Value Measurements Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	1,973	2,168
Derivative asset	0	0
Derivative liability	0	0
Fair Value Measurements Recurring | Level 1 | U.S. Government and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	41,605	25,569
Fair Value Measurements Recurring | Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Fair Value Measurements Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	0	0
Derivative asset	12,987	3,628
Derivative liability	4,310	16,780
Fair Value Measurements Recurring | Level 2 | U.S. Government and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	37,832	49,620
Fair Value Measurements Recurring | Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	15,658	15,009
Fair Value Measurements Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable equity securities	0	0
Derivative asset	0	0
Derivative liability	0	0
Fair Value Measurements Recurring | Level 3 | U.S. Government and agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	0	0
Fair Value Measurements Recurring | Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	$ 0	$ 0