Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	$ 2,213	$ 2,312
Debt securities, available-for-sale, at fair value	157,936	178,000
Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	160,149	180,312
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	4,612	4,621
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	155,537	175,691
Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Nonrecurring [Member]
Recurring fair value measurement [Abstract]
Fair Value	2,186	3,037
Nonrecurring fair value measurements: [Abstract]
Impaired loans	2,186	2,840
Other real estate owned and repossessed assets		197
Nonrecurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Fair Value	0	0
Nonrecurring fair value measurements: [Abstract]
Impaired loans	0	0
Other real estate owned and repossessed assets		0
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Fair Value	0	0
Nonrecurring fair value measurements: [Abstract]
Impaired loans	0	0
Other real estate owned and repossessed assets		0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Fair Value	2,186	3,037
Nonrecurring fair value measurements: [Abstract]
Impaired loans	2,186	2,840
Other real estate owned and repossessed assets		197
U.S. Treasury notes [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,399	2,309
U.S. Treasury notes [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,399	2,309
U.S. Treasury notes [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,399	2,309
U.S. Treasury notes [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Treasury notes [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency notes [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	29,268	48,984
U.S. Agency notes [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	29,268	48,984
U.S. Agency notes [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency notes [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	29,268	48,984
U.S. Agency notes [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency mortgage-backed securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	89,660	84,406
U.S. Agency mortgage-backed securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	89,660	84,406
U.S. Agency mortgage-backed securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
U.S. Agency mortgage-backed securities [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	89,660	84,406
U.S. Agency mortgage-backed securities [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Non-taxable Municipal securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	13,083	22,321
Non-taxable Municipal securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	13,083	22,321
Non-taxable Municipal securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Non-taxable Municipal securities [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	13,083	22,321
Non-taxable Municipal securities [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Taxable Municipal securities [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	22,841	19,980
Taxable Municipal securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	22,841	19,980
Taxable Municipal securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Taxable Municipal securities [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	22,841	19,980
Taxable Municipal securities [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0	0
Mutual funds [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	1,393	1,345
Mutual funds [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	42
Equity securities with a readily determinable fair value:		45
Mutual funds [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	42
Equity securities with a readily determinable fair value:		45
Mutual funds [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual funds [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual Funds Measured At Net Asset Value [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	1,351
Equity securities with a readily determinable fair value:		1,300
Mutual Funds Measured At Net Asset Value [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Mutual Funds Measured At Net Asset Value [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Equity securities [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	820	967
Equity securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	820
Equity securities with a readily determinable fair value:		967
Equity securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	820
Equity securities with a readily determinable fair value:		967
Equity securities [Member] | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		0
Equity securities [Member] | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	0
Equity securities with a readily determinable fair value:		$ 0
Corporate Debt Securities
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	685
Corporate Debt Securities | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	685
Corporate Debt Securities | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	0
Corporate Debt Securities | Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	685
Corporate Debt Securities | Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	$ 0