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Equity Incentive Plans (Narrative) (Details) - USD ($)					3 Months Ended
	Jan. 12, 2022	Apr. 26, 2021	Feb. 19, 2021	Feb. 10, 2021	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Options granted
Stock option expense					$ 45,000	$ 50,000
Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares underlying unexercised options					304,000
Expected future compensation expense, unexercised options					$ 534,000
Expected future compensation expense, weighted average period for recognition					4 years 3 months 21 days
Options Exercisable - Number of Option Shares					890,325
Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected future expenses relating to non-vested restricted shares					$ 690,000
Expected future compensation expense, weighted average period for recognition					3 years 5 months 19 days
2018 Equity Incentive Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares authorized for issuance					1,000,000
2011 Stock Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Shares authorized for issuance					900,000
Directors [Member]
Defined Benefit Plan Disclosure [Line Items]
Vesting period	4 years
Directors [Member] | Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Restricted stock issued	33,000
Directors [Member] | 2018 Equity Incentive Plan [Member] | Options [Member]
Defined Benefit Plan Disclosure [Line Items]
Options granted				66,000
Vesting period				5 years
Directors [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Restricted stock issued			300	26,400
Vesting period			2 years	4 years
Certain Officers [Member]
Defined Benefit Plan Disclosure [Line Items]
Options granted		6,800
Vesting period		5 years

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