Executive Compensation (Details) - USD ($)		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Chairman
Salary		$ 80,092	[1]	$ 72,373	[2]	$ 74,700	[3]
Other Compensation		18,693	[4]	22,967	[5]	15,930	[6]
Securities Underlying Options and Warrants (#) (1)	[7]	0		83,333		410,528
CEO and CFO
Salary		104,206	[8]	93,059	[9]	94,127	[10]
Other Compensation		58,677	[11]	55,111	[12]	51,826	[13]
Securities Underlying Options and Warrants (#) (1)	[7]	0		100,000		436,254
President
Salary		218,941	[14]	200,573	[15]	197,450	[16]
Other Compensation		34,113	[17]	27,469	[18]	24,989	[19]
Securities Underlying Options and Warrants (#) (1)	[7]	$ 0		$ 100,000		$ 421,846

[1] Includes no deferred compensation.

[2] Includes no deferred compensation.

[3] Includes no deferred compensation.

[4] Represents $2,375 of expense for business parking for Mr. Kilkenny, $12,621 of insurance premiums, and $3,697 of post-retirement benefits paid by us for the benefit of Mr. Kilkenny.

[5] Represents $2,100 of expense for business parking for Mr. Kilkenny, $11,460 of insurance premiums, $5,654 of special vacation cash-out, and $3,753 of post-retirement benefits paid by us for the benefit of Mr. Kilkenny.

[6] Represents $2,100 of expense for business parking for Mr. Kilkenny, $10,322 of insurance premiums, and $3,508 of post-retirement benefits paid by us for the benefit of Mr. Kilkenny.

[7] Options are generally granted with an exercise price equal to the fair market value of our common stock on the date of the grant and are valued based on the Black-Scholes option pricing model.

[8] Includes $70,695 of deferred compensation.

[9] Includes $63,273 of deferred compensation.

[10] Includes $59,616 of deferred compensation.

[11] Represents $9,600 of expense reimbursement for business use of Mr. Baresel’s automobile and parking, $5,290 of expense reimbursement for Mr. Baresel’s home office and cell phone, $42,371 of insurance premiums, and $1,416 of post-retirement benefits paid by us for the benefit of Mr. Baresel.

[12] Represents $9,600 of expense reimbursement for business use of Mr. Baresel’s automobile and parking, $5,550 of expense reimbursement for Mr. Baresel’s home office and cell phone, $38,556 of insurance premiums, and $1,405 of post-retirement benefits paid by us for the benefit of Mr. Baresel.

[13] Represents $9,600 of expense reimbursement for business use of Mr. Baresel’s automobile and parking, $5,535 of expense reimbursement for Mr. Baresel’s home office and cell phone, $35,288 of insurance premiums, and $1,403 of post-retirement benefits paid by us for the benefit of Mr. Baresel.

[14] Includes no deferred compensation.

[15] Includes no deferred compensation.

[16] Includes no deferred compensation.

[17] Represents $2,375 of expense reimbursement for Mr. Ayers’ parking, $1,500 of expense reimbursement for Mr. Ayers’ internet connection and cell phone, $23,485 of insurance premiums, and $6,753 of post-retirement benefits paid by us for the benefit of Mr. Ayers.

[18] Represents $2,100 of expense reimbursement for Mr. Ayers’ parking, $1,500 of expense reimbursement for Mr. Ayers’ internet connection and cell phone, $17,558 of insurance premiums, and $6,311 of post-retirement benefits paid by us for the benefit of Mr. Ayers.

[19] Represents $2,100 of expense reimbursement for Mr. Ayers’ parking, $1,500 of expense reimbursement for Mr. Ayers’ internet connection and cell phone, $15,277 of insurance premiums, and $6,112 of post-retirement benefits paid by us for the benefit of Mr. Ayers.