RESTATEMENT OF PREVIOUSLY FILED FINANCIAL INFORMATION - Restatement of Statement of Cash Flows (Details) - USD ($)	3 Months Ended												6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flows From Operating Activities
Net income	$ 5,026,692	$ 8,858,000	$ 11,342,597	$ 4,269,260	$ (7,079,308)	$ 5,693,628	$ 4,719,806	$ 5,665,634	$ (4,509,935)	$ 3,073,760	$ 1,910,763	$ 1,279,281	$ 15,611,857		$ 24,469,857		$ 29,496,551	$ 8,999,760	$ 1,753,869
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization				12,929,054									27,544,324		41,659,494		56,204,269	39,024,886	20,517,780
Accretion expense				215,945									445,179		681,386		943,707	606,459	567,968
Share-based compensation				834,465									1,643,199		2,436,035		3,082,625	3,870,934	3,685,079
Deferred income tax provision				1,918,144									5,049,219		7,498,112		9,500,517	2,537,837	3,862,827
Excess tax deficiency related to share-based compensation		355,990	434,720	2,946,615		$ 724,073	$ 0	1,158,604					3,380,940	$ 1,158,604	3,737,325	$ 434,530
Change in fair value of derivative instruments				340,685									(1,189,545)		(3,066,913)		3,000,078	(3,968,286)	3,968,286
Changes in assets and liabilities:
Accounts receivable				(15,808,739)									(9,847,686)		(7,095,256)		(10,035,648)	666,283	(9,980,206)
Prepaid expenses and retainers				180,452									(6,388,823)		(6,060,699)		(1,878,667)	(318,190)	268,080
Accounts payable				2,111,804									(451,965)		(1,055,397)		12,320,308	4,435,269	12,375,772
Settlement of asset retirement obligation				(107,770)									(384,956)		(615,732)		(1,295,966)	(577,824)	(766,595)
Net Cash Provided by Operating Activities				9,829,915									35,411,743		62,588,212		106,616,221	70,357,321	42,806,204
Cash Flows From Investing Activities
Payments to purchase oil and natural gas properties				(13,358,132)									(268,120,579)		(263,262,046)		(3,400,411)	(4,656,484)	(28,682,298)
Payments to develop oil and natural gas properties				(42,228,740)									(81,051,832)		(122,004,117)		(152,125,320)	(198,870,366)	(124,680,469)
Proceeds from disposal of fixed assets subject to depreciation				0									0		0		0	105,536	0
Net Cash Used in Investing Activities				(55,586,872)									(349,172,411)		(385,266,163)		(423,040,251)	(203,421,314)	(157,912,960)
Cash Flows From Financing Activities
Proceeds from revolving line of credit				45,000,000									321,000,000		327,000,000		327,000,000	39,500,000	0
Proceeds from issuance of common stock, net of offering costs				0									0		0		0	81,821,138	59,026,956
Reduction of financing lease liability													(24,076)		(86,686)		(153,417)	0	0
Net Cash Provided by Financing Activities				45,000,000									320,975,924		326,913,314		323,064,926	121,421,138	59,026,956
Net Increase (Decrease) in Cash				(756,957)									7,215,256		4,235,363		6,640,896	(11,642,855)	(56,079,800)
Cash at Beginning of Period	7,599,089	10,578,982	2,606,769	3,363,726				$ 15,006,581				$ 71,086,381	3,363,726	$ 15,006,581	3,363,726	$ 15,006,581	3,363,726	15,006,581	71,086,381
Cash at End of Period	10,004,622	7,599,089	10,578,982	2,606,769	3,363,726				15,006,581				10,578,982		7,599,089		10,004,622	3,363,726	15,006,581
Supplemental Cash Flow Information
Cash paid for interest				708,951									932,896		5,821,545		10,364,313	323,916	0
Noncash Investing and Financing Activities
Asset retirement obligation incurred during development				175,173									441,244		602,090		631,727	1,311,956	1,297,289
Operating lease assets obtained in exchange for new operating lease liability													539,577		539,577		2,319,185	0	0
Financing lease assets obtained in exchange for new financing lease liability													637,757		947,435		858,513	0	0
Capitalized expenditures attributable to drilling projects financed through current liabilities				34,605,000									41,800,000		26,958,655		15,170,000	26,000,000	23,000,000
Acquisition of oil and gas properties
Assumption of joint interest billing receivable	1,464,394	1,464,394	1,464,394	1,464,394	0				0				1,464,394		1,464,394		1,464,394	0	0
Assumption of prepaid assets	2,864,554	2,864,554	2,864,554	2,864,554	0				0				2,864,554		2,864,554		2,864,554	0	0
Assumption of accounts and revenue payables	(1,234,861)	(1,234,862)	(1,234,862)	(1,234,862)	0				0				(1,234,862)		(1,234,862)		(1,234,861)	0	0
Asset retirement obligation incurred through acquisition	(3,705,941)	(2,979,645)	(2,979,645)	(2,979,645)	0				0				(2,979,645)		(2,979,645)		(3,705,941)	0	0
Acquisition payable to be settled through equity				(28,356,396)
Acquisition payable to be settled through cash payment				(256,877,766)
Common stock issued as partial consideration in asset acquisition	28,331,327	(28,356,396)	(28,356,396)		0				0				(28,356,396)		(28,356,396)		28,331,327	0	0
Oil and gas properties subject to amortization	305,004,775	296,910,774	296,910,774	285,119,721	0				$ 0				296,910,774		296,910,774		305,004,775	0	$ 0
As Previously Reported
Cash Flows From Operating Activities
Net income		9,888,356	12,375,254	11,089,443									23,464,697		33,353,053
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization				12,929,054									27,544,324		41,659,494
Accretion expense				215,945									445,179		681,386
Share-based compensation				834,465									1,643,199		2,436,035
Deferred income tax provision				1,918,144									5,049,219		7,498,112
Excess tax deficiency related to share-based compensation				(3,873,568)									(4,471,900)		(5,145,871)
Change in fair value of derivative instruments				340,685									(1,189,545)		(3,066,913)
Changes in assets and liabilities:
Accounts receivable				(15,808,739)									(9,847,686)		(7,095,256)
Prepaid expenses and retainers				180,452									(6,388,823)		(6,060,699)
Accounts payable				2,111,804									(451,965)		(1,055,397)
Settlement of asset retirement obligation				(107,770)									(384,956)		(615,732)
Net Cash Provided by Operating Activities				9,829,915									35,411,743		62,588,212
Cash Flows From Investing Activities
Payments to purchase oil and natural gas properties				(13,358,132)									(268,120,579)		(263,262,046)
Payments to develop oil and natural gas properties				(42,228,740)									(81,051,832)		(122,004,117)
Proceeds from disposal of fixed assets subject to depreciation				0									0		0
Net Cash Used in Investing Activities				(55,586,872)									(349,172,411)		(385,266,163)
Cash Flows From Financing Activities
Proceeds from revolving line of credit				45,000,000									321,000,000		327,000,000
Proceeds from issuance of common stock, net of offering costs				0									0		0
Reduction of financing lease liability													(24,076)		(86,686)
Net Cash Provided by Financing Activities				45,000,000									320,975,924		326,913,314
Net Increase (Decrease) in Cash				(756,957)									7,215,256		4,235,363
Cash at Beginning of Period	$ 7,599,089	10,578,982	2,606,769	3,363,726									3,363,726		3,363,726		$ 3,363,726
Cash at End of Period		7,599,089	10,578,982	2,606,769	$ 3,363,726								10,578,982		7,599,089			$ 3,363,726
Supplemental Cash Flow Information
Cash paid for interest				708,951									932,896		5,821,545
Noncash Investing and Financing Activities
Asset retirement obligation incurred during development				175,173									441,244		602,090
Operating lease assets obtained in exchange for new operating lease liability													539,577		539,577
Financing lease assets obtained in exchange for new financing lease liability													637,757		947,435
Capitalized expenditures attributable to drilling projects financed through current liabilities				34,605,000									41,800,000		26,958,655
Acquisition of oil and gas properties
Assumption of joint interest billing receivable		1,464,394	1,464,394	1,464,394									1,464,394		1,464,394
Assumption of prepaid assets		2,864,554	2,864,554	2,864,554									2,864,554		2,864,554
Assumption of accounts and revenue payables		(1,234,862)	(1,234,862)	(1,234,862)									(1,234,862)		(1,234,862)
Asset retirement obligation incurred through acquisition		(2,979,645)	(2,979,645)	(2,979,645)									(2,979,645)		(2,979,645)
Acquisition payable to be settled through equity				(28,356,396)
Acquisition payable to be settled through cash payment				(256,877,766)
Common stock issued as partial consideration in asset acquisition		(28,356,396)	(28,356,396)										(28,356,396)		(28,356,396)
Oil and gas properties subject to amortization		296,910,774	296,910,774	285,119,721									296,910,774		296,910,774
Restatement Adjustment
Cash Flows From Operating Activities
Net income		$ (1,030,356)	$ (1,032,657)	(6,820,183)									(7,852,840)		(8,883,196)
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Excess tax deficiency related to share-based compensation				$ 6,820,183									$ 7,852,840		$ 8,883,196