STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (AccumulatedDeficit) [Member]
Balance at Dec. 31, 2015	$ 186,231,128	$ 30,392	$ 193,269,034	$ (7,068,298)
Balance (in shares) at Dec. 31, 2015		30,391,342
Share-based compensation	2,267,053	$ 0	2,267,053	0
Options exercised (cashless exercise)	0	$ 0	0	0
Options exercised (cashless exercise) (in shares)		734
Options exercised	112,500	$ 26	112,474	0
Options exercised (in shares)		25,600
Common stock issued for cash, net	139,567,979	$ 18,695	139,549,284	0
Common stock issued for cash, net (in shares)		18,695,387
Net income (loss)	(37,637,687)	$ 0	0	(37,637,687)
Balance at Dec. 31, 2016	290,540,973	$ 49,113	335,197,845	(44,705,985)
Balance (in shares) at Dec. 31, 2016		49,113,063
Modified Retrospective adjustment	1,596,463			1,596,463
Share-based compensation	3,685,079	$ 0	3,685,079	0
Options exercised (cashless exercise)	0	$ 133	(133)	0
Options exercised (cashless exercise) (in shares)		133,308
Options exercised	0	$ 0	0	0
Common stock issued for cash, net	59,026,956	$ 4,978	59,021,978	0
Common stock issued for cash, net (in shares)		4,977,658
Net income (loss)	1,753,869	$ 0	0	1,753,869
Balance at Dec. 31, 2017	356,603,340	$ 54,224	397,904,769	(41,355,653)
Balance (in shares) at Dec. 31, 2017		54,224,029
Share-based compensation	3,870,934	$ 0	3,870,934	0
Options exercised (cashless exercise)	0	$ 103	(103)	0
Options exercised (cashless exercise) (in shares)		103,113
Options exercised	100,000	$ 50	99,950	0
Options exercised (in shares)		50,000
Restricted stock vested	0	$ 65	(65)
Restricted stock vested (in shares)		64,620
Common stock issued for cash, net	81,821,138	$ 6,164	81,814,974	0
Common stock issued for cash, net (in shares)		6,164,000
Common stock issued in property acquisition	11,204,258	$ 2,624	11,201,634	0
Common stock issued in property acquisition (in shares)		2,623,948
Net income (loss)	8,999,760	$ 0	0	8,999,760
Balance at Dec. 31, 2018	$ 462,599,430	$ 63,230	$ 494,892,093	$ (32,355,893)
Balance (in shares) at Dec. 31, 2018		63,229,710