XML 100 R28.htm IDEA: XBRL DOCUMENT
v3.20.1

REVENUE RECOGNITION (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
REVENUE RECOGNITION |
Schedule of disaggregation of revenue | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the years ended December 31,
​ |  | 2019 |  | 2018 |  | 2017
Operating revenues |  | ​ |  |  | ​ |  |  | ​ |
Oil | ​ | $ | 191,891,314 | ​ | $ | 116,678,375 | ​ | $ | 64,236,490
Natural gas | ​ |  | 3,811,517 | ​ |  | 3,386,986 | ​ |  | 2,463,210
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total operating revenues | ​ | $ | 195,702,831 | ​ | $ | 120,065,361 | ​ | $ | 66,699,700

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration