Note 9 - Earnings (Loss) Per Share - Schedule of Pro Forma Information (Details) - USD ($)		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Net Loss		$ (3,093,143)	$ (3,834,565)
Interest expense on note payable to Ramaco Carbon, LLC(1)
Basic net loss attributable to common shareholders (2)	[1]		$ (3,834,565)
Basic net loss attributable to common shareholders, shares (in shares)	[1]		22,498,150
Basic net loss attributable to common shareholders, per share (in dollars per share)	[1]		$ (0.17)
Effect of dilutive securities(3)
Diluted net loss attributable to common shareholders			$ (3,834,565)
Diluted net loss attributable to common shareholders, shares (in shares)			22,498,150
Diluted net loss attributable to common shareholders, per share (in dollars per share)			$ (0.17)
Basic net loss attributable to common shareholders (2) (in shares)	[1]		22,498,150
Basic net loss attributable to common shareholders (2) (in dollars per share)	[1]		$ (0.17)
Diluted net loss attributable to common shareholders (in shares)			22,498,150
Diluted net loss attributable to common shareholders (in dollars per share)			$ (0.17)
Pro Forma [Member]
Net Loss		(3,093,143)
Interest expense on note payable to Ramaco Carbon, LLC(1)	[2]	21,855
Basic net loss attributable to common shareholders (2)		$ (3,071,288)
Basic net loss attributable to common shareholders, shares (in shares)	[1]	32,068,708
Basic net loss attributable to common shareholders, per share (in dollars per share)	[1]	$ (0.10)
Effect of dilutive securities(3)	[3]
Diluted net loss attributable to common shareholders		$ (3,071,288)
Diluted net loss attributable to common shareholders, shares (in shares)		32,068,708
Diluted net loss attributable to common shareholders, per share (in dollars per share)		$ (0.10)
Basic net loss attributable to common shareholders (2) (in shares)	[1]	32,068,708
Basic net loss attributable to common shareholders (2) (in dollars per share)	[1]	$ (0.10)
Diluted net loss attributable to common shareholders (in shares)		32,068,708
Diluted net loss attributable to common shareholders (in dollars per share)		$ (0.10)

[1] Weighted average number of shares outstanding during the quarter

[2] Adjustment has been made to the pro forma loss to addback interest expense associated with the note payable to Ramaco Carbon, LLC which was repaid in full using proceeds from the IPO.

[3] Excludes 937,424 shares issuable upon the exercise of outstanding options held by certain of our executive management because their effect would be anti-dilutive