Stock-based Compensation (Narrative) (Details)	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($) Item shares	Mar. 31, 2023 shares	Jun. 30, 2022 USD ($) shares	Mar. 31, 2022 shares	Jun. 30, 2023 USD ($) Item shares	Jun. 30, 2022 USD ($) shares	Dec. 31, 2006 USD ($) $ / shares shares	May 23, 2012 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans | Item	3				3
ESOP compensation expense | $					$ 44,000	$ 58,000
ESOP, shares earned	1,984	1,984	1,984	1,984
2006 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment award expiration date					Oct. 24, 2016
Stock option award vesting period					5 years
Stock options exercised, shares	0		0		0	0
Stock awards available for grant, shares	0				0
2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercised, shares	0		0		0	0
Share-based compensation number of stock shares vested					11,734
Employee Stock Ownership Plan "ESOP" [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award requisite service period					5 years
ESOP, loan amount | $	$ 1,400,000				$ 1,400,000		$ 2,600,000
ESOP, shares acquired							238,050
ESOP, stock purchase price | $ / shares							$ 10.7
ESOP, reduction to stockholders' equity from purchased shares | $							$ 2,600,000
ESOP, fair value of unallocated shares | $	$ 1,100,000				$ 1,100,000
ESOP, number of allocated shares	76,815		80,403		76,815	80,403
ESOP, number of unallocated shares	103,154		111,089		103,154	111,089
ESOP compensation expense | $	$ 22,000		$ 28,000		$ 44,000	$ 58,000
ESOP, shares earned	1,984				3,968
Restricted Stock [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost | $	$ 31,000		74,000		$ (18,000)	116,000
Share-based compensation number of stock shares vested					109,620
Unrecognized compensation cost, recognition period					16 months 9 days
Unrecognized compensation cost related to awards | $	$ 162,000				$ 162,000
Stock Option [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards available for grant, shares	0				0
Non-Interest Expense Section [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense | $	$ 53,000		$ 102,000		$ 26,000	$ 174,000
Maximum [Member] | 2006 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation number of shares authorized	297,562				297,562
Share-based payment award expiration period					10 years
Maximum [Member] | Restricted Stock [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation number of shares authorized								180,000
Maximum [Member] | Stock Option [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation number of shares authorized								20,000