Long-term Debt and Line of Credit, Summary (Details) - USD ($) $ in Thousands		12 Months Ended
	Jul. 22, 2020	Sep. 30, 2021	Feb. 02, 2021	Sep. 30, 2020
Long-term Debt and Line of Credit [Abstract]
Long-term debt, gross		$ 116,534		$ 91,536
Less current portion		(11,366)		(7,419)
Less unamortized portion of debt issuance costs		(2,094)		(2,140)
Long-term debt, net of current portion and unamortized debt issuance costs		$ 103,074		$ 81,977
Term Note Payable to Truist Bank, Secured and Bearing Interest at 2.75% September 30, 2021 and 3.0% September 30, 2020. The Note Requires Quarterly Principal Payments Commencing on March 31, 2021 and Maturing With a Full Repayment On July 22, 2025 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Jul. 22, 2025
Interest rate		2.75%		3.00%
Long-term debt, gross		$ 105,875		$ 80,000
Revolving Note Payable For an Amount up to $30.0 Million to Truist Bank [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity		30,000
Long-term debt, gross		$ 0		0
Note payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.9% Per Annum. The Note Requires Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Jul. 31, 2028
Frequency of periodic payment		monthly
Long-term debt, gross		$ 3,248		2,454
Note payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.9% Per Annum. The Note Requires Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member] | Minimum [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		0.00%
Monthly installment payment amount		$ 100
Note payable to Commercial Vehicle Lenders Secured by the Value of the Vehicles Bearing Interest at Rates Ranging from 0.0% to 8.9% Per Annum. The Note Requires Monthly Installment Payments of Principal and Interest Ranging from $100 to $5,600 through July 2028 [Member] | Maximum [Member]
Long-term Debt and Line of Credit [Abstract]
Interest rate		8.90%
Monthly installment payment amount		$ 5,600
Note payable to Central Marine Services, Inc., Unsecured and Bearing Interest at 5.5% Per Annum. The Note Requires Monthly Interest Payments, with a Balloon Payment of Principal due on February 1, 2022 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Feb. 01, 2022
Interest rate		5.50%
Long-term debt, gross		$ 2,164		2,164
Note Payable To Tom George Yacht Sales, Inc., Unsecured and Bearing Interest At 5.5% Per Annum. The Note Requires Quarterly Interest Payments, With a Balloon Payment of Principal Due On December 1, 2023 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Dec. 01, 2023
Interest rate		5.50%
Long-term debt, gross		$ 2,056		0
Note payable to Ocean Blue Yacht Sales, Unsecured and Bearing Interest at 5.0% Per annum. The note Requires Quarterly Interest Payments, with a Balloon Payment of Principal Due on February 1, 2022 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Feb. 01, 2022
Interest rate		5.00%
Long-term debt, gross		$ 1,920		1,920
Note Payable to Lab Marine, Inc., Unsecured and Bearing Interest at 6.0% Per Annum. The Note was Repaid in Full on March 1, 2021 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Mar. 01, 2021
Interest rate		6.00%
Long-term debt, gross		$ 0		1,500
Note Payable to Slalom Shop, LLC, Unsecured and Bearing Interest at 5.0% Per Annum. The Note Requires Quarterly Interest Payments, with a Balloon Payment of Principal Due on December 1, 2021 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Dec. 01, 2021
Interest rate		5.00%
Long-term debt, gross		$ 1,271		1,271
Note Payable to Bosun's Marine, Inc., Unsecured and Bearing Interest at 4.5% Per Annum. The Note was Repaid in Full on June 1, 2021 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Jun. 01, 2021
Interest rate		4.50%
Long-term debt, gross		$ 0		1,227
Note Payable to Rebo, Inc., Unsecured and Bearing Interest at 5.5% Per Annum. The Note was Repaid in Full on April 1, 2021 [Member]
Long-term Debt and Line of Credit [Abstract]
Maturity date		Apr. 01, 2021
Interest rate		5.50%
Long-term debt, gross		$ 0		$ 1,000
Term Loan [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	$ 110,000
Revolving Credit Facility [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	30,000
Credit Agreement [Member]
Long-term Debt and Line of Credit [Abstract]
Credit facility accordion feature amount	$ 50,000
Credit Agreement [Member] | LIBOR [Member] | Maximum [Member]
Long-term Debt and Line of Credit [Abstract]
Debt instrument, variable interest rate	3.00%
Credit Agreement [Member] | Incremental Term Loan [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity			$ 30,000
Credit Agreement [Member] | Swingline Loans [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	$ 5,000
Credit Agreement [Member] | Term Loan [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	80,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	$ 30,000
Maturity date		Jul. 22, 2025
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Long-term Debt and Line of Credit [Abstract]
Percentage of unused line fee	0.40%
Credit Agreement [Member] | Letter of Credit [Member]
Long-term Debt and Line of Credit [Abstract]
Line of credit maximum borrowing capacity	$ 5,000