Long-Term Debt (Tables)

12 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-Term Debt

Long-term debt consists of the following:

	September 30
	2020				2019
	Principal		Unamortized Debt Issuance Costs		Principal		Unamortized Debt Issuance Costs
Roanoke Gas:
Unsecured senior notes payable, at 4.26%, due on September 18, 2034	$	30,500,000	$	135,157	$	30,500,000	$	144,811
Unsecured term note payable, at 30-day LIBOR plus 0.90%, November 1, 2021	7,000,000		3,613		7,000,000		6,948
Unsecured term notes payable, at 3.58% due on October 2, 2027	8,000,000		33,712		8,000,000		38,528
Unsecured term notes payable at 4.41%, due on March 28, 2031	10,000,000		32,892		10,000,000		36,272
Unsecured term notes payable at 3.60%, due on December 6, 2029	10,000,000		32,585		—		—
Midstream:
Unsecured term notes payable, at 30-day LIBOR plus 1.35% due December 29, 2022	25,475,200		38,728		16,012,200		59,504
Unsecured term note payable, at 30-day LIBOR plus 1.15%, due June 12, 2026	14,000,000		13,844		14,000,000		16,252
Unsecured term note payable, at 30-day LIBOR plus 1.20%, due June 1, 2024	10,000,000		8,644		10,000,000		11,000
Total notes payable	$	114,975,200	$	299,175	$	95,512,200	$	313,315
Line-of-credit, at 30-day LIBOR plus 1.00%, due March 31, 2022	9,143,606		—		8,172,473		—
Total long-term debt	$	124,118,806	$	299,175	$	103,684,673	$	313,315

Summary of Aggregate Annual Maturities of Long-Term Debt

The aggregate annual maturities of long-term debt for the next five years ending after September 30, 2020 are as follows:

Year Ending September 30	Maturities
2021	$	—
2022	16,268,606
2023	25,975,200
2024	9,375,000
2025	—
Thereafter	72,500,000
Total	$	124,118,806