Condensed Consolidated Statements of Stockholders' Equity - USD ($)	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated other comprehensive loss
Beginning balance (in shares) at Dec. 31, 2018		71,055,400
Beginning balance at Dec. 31, 2018	$ 479,605,849	$ 710,555	$ 894,272,533	$ (415,377,239)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	29,483			29,483
Issuance of shares due to vesting of restricted shares (in shares)		293,011
Issuance of shares due to vesting of restricted shares		$ 2,929	(2,929)
Unrealized loss on cash flow hedges	0
Cash used to settle net share equity awards	(877,161)		(877,161)
Stock-based compensation	1,445,469		1,445,469
Ending balance (in shares) at Mar. 31, 2019		71,348,411
Ending balance at Mar. 31, 2019	480,203,640	$ 713,484	894,837,912	(415,347,756)
Beginning balance (in shares) at Dec. 31, 2019		71,502,206
Beginning balance at Dec. 31, 2019	481,502,937	$ 715,022	917,862,269	(437,074,354)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss)/income	(3,527,759)			(3,527,759)
Issuance of shares due to vesting of restricted shares (in shares)		437,679
Issuance of shares due to vesting of restricted shares		$ 4,377	(4,377)
Unrealized loss on cash flow hedges	(271,868)				(271,868)
Cash used to settle net share equity awards	(1,161,301)		(1,161,301)
Stock-based compensation	836,200		836,200
Ending balance (in shares) at Mar. 31, 2020		71,939,885
Ending balance at Mar. 31, 2020	$ 477,378,209	$ 719,399	$ 917,532,791	$ (440,602,113)	$ (271,868)