Risks and Uncertainties - Additional Information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($) Customer	Dec. 31, 2020 USD ($)	Sep. 30, 2021 USD ($)
Concentration Risk [Line Items]
Revenue	$ 13,032	$ 26,722
Geospace Technologies Eurasia LLC
Concentration Risk [Line Items]
Percentage of ownership interest or majority of voting interests subject to sanctions	33.00%
Imported product for resale.			$ 1,200
Customer one
Concentration Risk [Line Items]
Trade accounts and financing receivables	$ 8,100
Customer two
Concentration Risk [Line Items]
Trade accounts and financing receivables	5,500
Customer three
Concentration Risk [Line Items]
Trade accounts and financing receivables	$ 3,000
Customer Concentration Risk
Concentration Risk [Line Items]
Number of customers | Customer	3
Sales Revenue, Net | Customer Concentration Risk
Concentration Risk [Line Items]
Number of customers | Customer	3
Sales Revenue, Net | Trade Accounts and Financing Receivables | Customer Concentration Risk | Customer one
Concentration Risk [Line Items]
Revenue	$ 4,600
Sales Revenue, Net | Trade Accounts and Financing Receivables | Customer Concentration Risk | Customer two
Concentration Risk [Line Items]
Revenue	700
Sales Revenue, Net | Trade Accounts and Financing Receivables | Customer Concentration Risk | Customer three
Concentration Risk [Line Items]
Revenue	$ 3,200