Nature of Operations and Recent Events - Additional Information (Details)							1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
	Oct. 25, 2021 $ / bbl	Oct. 05, 2021 $ / MMcf	Aug. 19, 2021 USD ($)	Mar. 08, 2021 USD ($)	Nov. 11, 2020 USD ($) D $ / shares shares	Jun. 05, 2020 USD ($) $ / shares	Oct. 31, 2021 USD ($) shares	Sep. 30, 2021 USD ($) item $ / shares	Jun. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) item	Sep. 30, 2020 USD ($) item	Sep. 30, 2021 USD ($) item $ / shares shares	Sep. 30, 2020 USD ($) item	Dec. 31, 2020 $ / shares	Mar. 31, 2020 item
Property, Plant and Equipment [Line Items]
Number of rigs | item								15				15
Market price of oil (in dollars per barrel) | $ / bbl	84.64
Natural gas price (in dollars per mmcf) | $ / MMcf		6.37
Common stock, par value (usd per share) | $ / shares						$ 0.01		$ 0.01				$ 0.01		$ 0.01
Proceeds from issuance of common stock											$ 11,000,000
Selling, general and administrative								$ 4,068,000		$ 2,796,000		$ 11,829,000	$ 10,101,000
Maximum aggregate offering price for sale of stock						$ 11,000,000
Maximum aggregate offering price for sale of additional stock			$ 7,500,000	$ 2,200,000
ATM Distribution Agreement
Property, Plant and Equipment [Line Items]
Proceeds from issuance of common stock												3,859,000	10,257,000
Gross proceeds on sale of stock							$ 5,400,000		$ 2,200,000			$ 2,100,000
Number of shares issued (in shares) | shares							1,588,251		585,934			686,739
Sale of stock, price per share (in dollars per share) | $ / shares									$ 3.75
Common Stock Purchase Agreement
Property, Plant and Equipment [Line Items]
Consecutive business days | D					5
Additional price per share (in dollars per share) | $ / shares					$ 0.128
Proceeds from issuance of common stock												$ 2,072,000	$ 0
Tumim Stone Capital LLC | Common Stock Purchase Agreement
Property, Plant and Equipment [Line Items]
Maximum sale of stock					$ 5,000,000
Common stock, par value (usd per share) | $ / shares					$ 0.01
Period of stock agreement					24 months
Maximum share issuance threshold (in shares) | shares					1,234,546
Maximum threshold percentage of outstanding stock					19.99%
Maximum sale of stock (in shares) | shares					1,500,000
Maximum amount of common stock Tumim is allowed to own (as percent)					4.99%
Selling, general and administrative					$ 500,000
Gross proceeds on sale of stock												$ 2,100,000
Number of shares issued (in shares) | shares												497,700
Sale of stock, price per share (in dollars per share) | $ / shares								$ 4.16				$ 4.16
Maximum
Property, Plant and Equipment [Line Items]
Number of rigs | item															22
Minimum
Property, Plant and Equipment [Line Items]
Number of rigs | item										3	3		3