Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	$ 2,036	$ 2,312
Debt securities, available-for-sale, at fair value	141,439	178,000
Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	143,475	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	4,445	4,621
Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	139,030	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	1,352	3,037
Nonrecurring fair value measurements:
Impaired loans	1,352	2,840
Other real estate owned and repossessed assets	0	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:
Impaired loans	0	0
Other real estate owned and repossessed assets	0	0
Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Recurring fair value measurement [Abstract]
Fair Value	0	0
Nonrecurring fair value measurements:
Impaired loans	0	0
Other real estate owned and repossessed assets	0	0
Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Recurring fair value measurement [Abstract]
Fair Value	1,352	3,037
Nonrecurring fair value measurements:
Impaired loans	1,352	2,840
Other real estate owned and repossessed assets	0	197
U.S. Treasury notes [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,409	2,309
U.S. Treasury notes [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	2,409	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	2,409	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	22,703	48,984
U.S. Agency notes [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	22,703	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	22,703	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	82,685	84,406
U.S. Agency mortgage-backed securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	82,685	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	82,685	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	13,368	22,321
Non-taxable Municipal securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	13,368	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	13,368	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	20,274	19,980
Taxable Municipal securities [Member] | Recurring [Member]
Recurring fair value measurement [Abstract]
Debt securities, available-for-sale, at fair value	20,274	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	20,274	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 [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	34
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	34
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	1,327
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 [Member]
Recurring fair value measurement [Abstract]
Equity securities with a readily determinable fair value, at fair value	675
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	675
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