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RETIREMENT PLANS (Tables)
 12 Months Ended
Sep. 30, 2022
Retirement Benefits [Abstract]  
Schedule of changes in benefit obligations, fair values of plan assets and reconciliations of the funded status of the retirement plans
The following tables detail the changes in benefit obligations, fair values of plan assets and reconciliations of the funded status of the retirement plans:
 PensionSERPPost-retirement Medical
 September 30,
 202220212022202120222021
Change in Projected Benefit Obligation:     
Benefit obligation at beginning of year$10,365,000 $10,280,000 $2,136,000 $2,031,000 $— $2,839,000 
Interest cost290,000 258,000 60,000 51,000 — 48,000 
Actuarial (gain) loss(2,418,000)(15,000)(478,000)63,000 — — 
Benefits paid(306,000)(158,000)(3,000)(9,000)— (5,000)
Termination of post-retirement medical plan— — — — — (2,882,000)
Benefit obligation at end of year7,931,000 10,365,000 1,715,000 2,136,000 — — 
Change in Plan Assets:      
Fair value of plan assets at beginning of year12,594,000 11,051,000 — — — — 
Actual return on plan assets(972,000)1,701,000 — — — — 
Employer contributions— — — — — 5,000 
Benefits paid(306,000)(158,000)— — — (5,000)
Fair value of plan assets at end of year11,316,000 12,594,000 — — — — 
Funded status$3,385,000 $2,229,000 $(1,715,000)$(2,136,000)$— $— 
Schedule of amounts recognized in the consolidated balance sheets
 PensionSERPPost-retirement Medical
 September 30,
 202220212022202120222021
Amounts recognized in the Consolidated Balance Sheets: 
Noncurrent assets$3,385,000 $2,229,000 $— $— $— $— 
Current liabilities— — (66,000)(35,000)— — 
Noncurrent liabilities— — (1,649,000)(2,101,000)— — 
Net amount$3,385,000 $2,229,000 $(1,715,000)$(2,136,000)$— $— 
Amounts recognized in accumulated other comprehensive income before income taxes: 
Net actuarial (gain) loss$(353,000)$471,000 $(343,000)$135,000 $— $— 
Accumulated other comprehensive (income) loss$(353,000)$471,000 $(343,000)$135,000 $— $— 
Schedule of amounts recognized in accumulated other comprehensive (loss) income
 PensionSERPPost-retirement Medical
 September 30,
 202220212022202120222021
Amounts recognized in the Consolidated Balance Sheets: 
Noncurrent assets$3,385,000 $2,229,000 $— $— $— $— 
Current liabilities— — (66,000)(35,000)— — 
Noncurrent liabilities— — (1,649,000)(2,101,000)— — 
Net amount$3,385,000 $2,229,000 $(1,715,000)$(2,136,000)$— $— 
Amounts recognized in accumulated other comprehensive income before income taxes: 
Net actuarial (gain) loss$(353,000)$471,000 $(343,000)$135,000 $— $— 
Accumulated other comprehensive (income) loss$(353,000)$471,000 $(343,000)$135,000 $— $— 
Schedule of weighted-average assumptions used to determine benefit obligations and net periodic benefit (income) costs
The following table presents the weighted-average assumptions used to determine benefit obligations and net benefit (income) costs:
 PensionSERPPost-retirement Medical
                   Year ended September 30,
 202220212022202120222021
Assumptions used to determine fiscal year-end benefit obligations:  
Discount rate5.25%2.84%5.25%2.84%N/AN/A
Rate of compensation increaseN/AN/AN/AN/AN/AN/A
Assumptions used to determine net benefit costs (years ended):   
Discount rate2.84%2.54%2.84%2.54%N/A
2.54% / 3.00%(1)
Expected return on plan assets5.00%5.00%N/AN/AN/AN/A
Rate of compensation increaseN/AN/AN/AN/AN/AN/A
_______________________________________________
(1)      2.54% as of September 30, 2020 and 3.00% as of May 31, 2021 termination.
Schedule of components of net periodic benefit (income) cost
The components of net periodic benefit (income) cost are as follows:
 PensionSERPPost-retirement Medical
 Year ended September 30,
 202220212022202120222021
Net periodic benefit (income) cost for the year: 
Interest cost$290,000 $258,000 $60,000 $51,000 $— $48,000 
Expected return on plan assets(622,000)(546,000)— — — — 
Amortization of net actuarial loss — 39,000 — — — 62,000 
Net periodic benefit (income) cost$(332,000)$(249,000)$60,000 $51,000 $— $110,000 
Schedule of benefits expected to be paid under the retirement plans
The benefits expected to be paid under the retirement plans as of September 30, 2022 are as follows:
PensionSERP
Expected Benefit Payments:  
Fiscal year ending September 30, 2023$412,000 $66,000 
Fiscal year ending September 30, 2024$552,000 $130,000 
Fiscal year ending September 30, 2025$545,000 $129,000 
Fiscal year ending September 30, 2026$537,000 $128,000 
Fiscal year ending September 30, 2027$529,000 $127,000 
Fiscal years ending September 30, 2028 through 2032$2,969,000 $667,000 
Schedule of year-end target allocation, by asset category, and the actual asset allocations
The Company’s year-end target allocation, by asset category, and the actual asset allocations were as follows:
 
 TargetSeptember 30,
Asset CategoryAllocation20222021
Cash and other
0% - 25%
14%—%
Fixed income securities
15% - 40%
34%31%
Equity securities
45% - 75%
52%69%
Schedule of pension plan assets at fair value
The following tables set forth by level, within the fair value hierarchy, pension plan assets at their fair value:
  Fair Value Measurements Using:
Carrying
Amount
as of
September 30,
2022		Quoted
Prices in
Active
Markets
(Level 1)		Significant
Other
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)
Financial Assets:    
Cash$1,539,000 $1,539,000 $— $— 
Corporate bonds1,000 1,000 — — 
U.S. treasury and government securities561,000 561,000 — — 
Fixed income exchange-traded funds3,223,000 3,223,000 — — 
Preferred securities67,000 67,000 — — 
Equity securities exchange-traded funds408,000 408,000 — — 
Equities5,517,000 5,517,000 — — 
Total$11,316,000 $11,316,000 $— $— 
  Fair Value Measurements Using:
 Carrying
Amount
as of
September 30,
2021		Quoted
Prices in
Active
Markets
(Level 1)		Significant
Other
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)
Financial Assets:    
Cash$25,000 $25,000 $— $— 
Corporate bonds1,000 1,000 — — 
Fixed income exchange-traded funds3,809,000 3,809,000 — — 
Preferred securities48,000 48,000 — — 
Equity securities exchange-traded funds459,000 459,000 — — 
Equities8,252,000 8,252,000 — — 
Total$12,594,000 $12,594,000 $— $—