Stock Options and Warrants - Additional Information (Details)			1 Months Ended	3 Months Ended		12 Months Ended
	May 20, 2021 shares	Jan. 01, 2020 shares	Jul. 31, 2018 shares	Mar. 31, 2023 USD ($) $ / shares shares	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares	Sep. 30, 2022 $ / shares shares	Jul. 01, 2022 $ / shares	Dec. 31, 2021 shares	Jan. 01, 2021 shares	May 29, 2019 shares	Dec. 31, 2017 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period		10 years
Exchange ratio		0.89
Vested options outstanding		109,908
Converted options of common stock		97,821
Remaining available for grant for future awards				0
RSAs outstanding				579,790		676,270			858,670
Risk-free interest rate minimum				3.42%		1.45%
Risk-free interest rate maximum				4.14%		4.17%
Dividend yield rate				0.00%		0.00%
Estimated volatility rate, minimum				17.81%		10.00%
Estimated volatility rate, maximum				17.89%		38.00%
Expected lives of options				7 years 6 months		7 years 6 months
Share-based compensation expense | $				$ 142,000	$ 118,000
Unrecognized compensation costs related non-vested stock | $				1,800,000
Total intrinsic value of outstanding in-the-money stock options | $				798,000		$ 2,100,000
Intrinsic value outstanding in-the-money exercisable stock options | $				$ 798,000		$ 1,800,000
Stock options exercised				0
Intrinsic value of stock options exercised | $					24,000
Weighted average remaining contractual life of outstanding stock warrants				6 years 6 months
Fair value of warrants included in additional-paid-in capital | $				$ 380,000
Preferred stock, par value | $ / shares				$ 1.00
Common stock, par value | $ / shares				1		$ 1		$ 1.00
Series B Preferred Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Preferred stock, par value | $ / shares				1		$ 1
Private Placement Offering
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Warrants to purchase							175,000
Warrant exercise price of common stock per share | $ / shares				$ 22.50			$ 22.50
Private Placement Offering | Series B Preferred Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Preferred stock, par value | $ / shares							1.00
Private Placement Offering | Non-Voting Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, par value | $ / shares							$ 1.00
Directors, Executive Officers and Other Key Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period				10 years
Vesting period				5 years
RSAs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Granted during the period				47,762		54,424
Contractual term				10 years
Share-based compensation expense | $				$ 223,000	$ 161,000
Unrecognized compensation costs related to non-vested RSAs | $				$ 2,000,000.0
Warrants Expiring July 1, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average remaining contractual life of outstanding stock warrants				3 months
Warrants exercisable year				10 years
Warrants expires date				Jul. 01, 2023
Warrants Expiring September 30, 2029
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Warrants exercisable year				7 years
Warrants expires date				Sep. 30, 2029
Minimum | Directors, Executive Officers and Other Key Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted exercise price | $ / shares				$ 18.06		$ 17.11
Minimum | RSAs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period				2 years
Maximum | Directors, Executive Officers and Other Key Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted exercise price | $ / shares				$ 18.99		$ 25.76
Maximum | RSAs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period				4 years
2013 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized to grant				500,000
Additional issuance shares											152,750
Remaining available for grant for future awards				0
2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional issuance shares	800,000
Additional options shares grant in period	500,000
Remaining available for grant for future awards				68,767
2017 Non-Employee Director Stock Option Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized to grant												100,000
Additional options shares grant in period			50,000
Description of the plan				Options are generally granted with an exercise price equal to the market price of the Company’s stock at the date of the grant. Option awards generally vest based on five years of continuous service and have 10-year contractual terms for non-controlling participants as defined by the Director Plan. Other grant terms can vary for controlling participants as defined by the Director Plan.
Expiration period				10 years
Remaining available for grant for future awards				8,000
Vesting period				5 years
2017 Non-Employee Director Stock Option Plan | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized to grant			150,000
2017 Non-Employee Director Stock Option Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized to grant										187,000