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Equity Incentive Plans (Narrative) (Details) - USD ($)					3 Months Ended
	Jun. 30, 2023	Jan. 31, 2023	Sep. 30, 2022	Jan. 12, 2022	Mar. 31, 2024	Mar. 31, 2023	Apr. 27, 2023	Apr. 26, 2018	Apr. 28, 2011
Defined Benefit Plan Disclosure [Line Items]
Expected future expenses relating to non-vested restricted shares					$ 642,000
Expected future compensation expense, weighted average period for recognition					2 years 18 days
Stock option expense					$ 39,000	$ 33,000
Restricted stock expense					$ 156,000	$ 73,000
Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares underlying unexercised options					143,080
Expected future compensation expense, unexercised options					$ 237,000
Expected future compensation expense, weighted average period for recognition					2 years 9 months 18 days
Options exercisable - number of option shares					752,895
2018 Equity Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares authorized for issuance								1,000,000
2023 Equity Incentive Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares authorized for issuance							1,000,000
2011 Stock Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares authorized for issuance									900,000
Directors [Member] | Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Restricted stock issued		27,000		33,000
Vesting period		4 years		4 years
Executive Officers [Member] | Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Restricted stock issued			36,000
Director And Officer [Member] | Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Restricted stock issued	25,252

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