Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock	APIC	Accumulated Deficit	Accumulated Other Comprehensive Gain (Loss)	Non-Controlling Interest	Total
Balance at Dec. 31, 2017	$ 840	$ 76,382,262	$ (68,846,326)	$ (166,025)	$ (1,589,842)	$ 5,780,909
Public offering, 14,375,000 shares, net of underwriters discounts	2,875	20,697,122				20,699,997
Public offering, 9,200,000 shares, net of underwriters discounts	1,840	13,798,160				13,800,000
Exercise of warrants, 3,054,667 shares	611	4,837,982				4,838,593
Issuance of common stock, 1,566,997	314	3,909,779				3,910,093
Acquisition of non-controlling interest of Heat I/Pelican	7	(2,400,684)			2,400,677
Stock issuance costs		(3,130,133)				(3,130,133)
Stock-based compensation	12	788,647				788,659
Other comprehensive income (loss)				146,121		146,121
Net loss			(15,733,854)		(857,439)	(16,591,293)
Balance at Dec. 31, 2018	6,499	114,883,135	(84,580,180)	(19,904)	(46,604)	30,242,946
Issuance of common stock, 90,300 shares	18	18,880				18,898
Exercise of stock options, 2,000 shares		2,120				2,120
Issuance of common stock from vesting of restricted stock awards, 1,201,555 shares	240	(240)
Stock-based compensation		3,269,948				3,269,948
Other comprehensive income (loss)				8,654		8,654
Net loss			(20,017,568)		(367,148)	(20,384,716)
Balance at Dec. 31, 2019	$ 6,757	$ 118,173,843	$ (104,597,748)	$ (11,250)	$ (413,752)	$ 13,157,850