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Long-Term Debt - Additional Information (Detail) - USD ($)						12 Months Ended
	Mar. 16, 2022	Feb. 18, 2022	Dec. 20, 2021	Feb. 11, 2021	May 31, 2020	Dec. 31, 2021	Mar. 31, 2022	Feb. 15, 2017
Debt Instrument [Line Items]
Outstanding borrowings under revolving credit facility						$ 36,000,000
Weighted-average interest rate of borrowings						5.38%
Credit facility remaining borrowing capacity						$ 14,000,000
Line of Credit Facility, Decrease, Forgiveness	$ 1,200,000	$ 481,000
Loan Under Paycheck Protection Programme [Member] | Eastern Oilwells Service Corporation [Member]
Debt Instrument [Line Items]
Proceeds from scheme based loan					$ 470,000
Loan Under Paycheck Protection Programme [Member] | Prime Operating Company And Eastern Oilwells Company [Member]
Debt Instrument [Line Items]
Long term debt stated rate of interest					1.00%
Loan Under Paycheck Protection Programme [Member] | Prime Operating Company And Eastern Oilwells Company [Member] | Possible Forgiveness Of Loan [Member]
Debt Instrument [Line Items]
Period of forgiveness of term loan					10 months
Loan Under Paycheck Protection Programme [Member] | Prime Operating Company [Member]
Debt Instrument [Line Items]
Proceeds from scheme based loan					$ 1,280,000
Subsequent Event [Member]
Debt Instrument [Line Items]
Outstanding borrowings under revolving credit facility							$ 9,000,000
2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility borrowing capacity								$ 300,000,000
Credit agreement date						Feb. 15, 2017
Line of credit facility, expiration date						Feb. 15, 2021
Equipment Loan, face amount			$ 50,000,000	$ 40,000,000
Equipment Loan, maturity date			Feb. 11, 2023	Feb. 11, 2023
2017 Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			3.00%	3.00%
LIBOR Margin Rate			4.00%	4.00%
2017 Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			2.00%	2.00%
LIBOR Margin Rate			3.00%	3.00%
Base Rate And Libor [Member] | 2017 Credit Agreement [Member]
Debt Instrument [Line Items]
Debt instrument basis weighted average interest rate spread on variable rate						3.95%
Base Rate And Libor [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Debt instrument basis weighted average interest rate spread on variable rate						5.29%

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Contractual interest rate for funds borrowed, under the debt agreement.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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