EQUITY AND WARRANT LIABILITIES - Additional Information (Details) - USD ($)						1 Months Ended	3 Months Ended				7 Months Ended	9 Months Ended
	Oct. 01, 2021	Jun. 28, 2021	Jun. 25, 2021	Jun. 23, 2021	Mar. 19, 2019	Mar. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2021	Sep. 30, 2021	Nov. 05, 2021	Dec. 07, 2020
At-The-Market Equity (“ATM”) Offering [Member] | Common Stock [Member]
Common stock, shares sold						1,711,003	551,690	551,690	1,711,003	1,259,195
Proceeds from the issuance of common shares						$ 18,500,000	$ 5,500,000				$ 35,100,000
Offering-related expenses						$ 600,000	20,000.00		$ 600,000			$ 20,000.00
Remain available under sales agreement							14,000,000					$ 14,000,000
Common shares, par value														$ 0.0001
2020 Private Placement [Member]
Weighted average price												$ 10.50
2020 Private Placement [Member] | Steiner and Haymaker Sponsor, LLC [Member]
Deferred shares					1,600,000
Public Warrants [Member]
Warrants and Rights Outstanding							16,145,379			$ 16,150,379		$ 16,145,379
Sponsor Warrants [Member]
Warrants and Rights Outstanding							8,000,000.0			8,000,000.0		8,000,000.0
2020 PIPE Warrants [Member]
Warrants and Rights Outstanding							$ 5,000,000.0			$ 5,000,000.0		$ 5,000,000.0
Secondary Offering, “Underwriting Agreement” [Member] | Common Stock [Member] | Steiner, the “Selling Shareholders” and “Underwriters” [Member]
Common stock, shares sold				8,421,053
Proceeds from the issuance of common shares		$ 0
Common shares, par value				$ 0.0001
Share price				$ 9.50
Period of option to purchase additional shares				30 days
Secondary Offering, “Underwriting Agreement” [Member] | Common Stock [Member] | Maximum [Member] | Steiner, the “Selling Shareholders” and “Underwriters” [Member]
Common stock, shares sold			1,263,158	1,263,158
Subsequent Event [Member] | At-The-Market Equity (“ATM”) Offering [Member] | Common Stock [Member]
Common stock, shares sold	350,000
Proceeds from the issuance of common shares	$ 3,500,000
Remain available under sales agreement													$ 10,000,000.0
Voting Common Stock [Member]
Common stock, shares issued							74,175,938			69,292,596		74,175,938
Common stock, shares outstanding							74,175,938			69,292,596		74,175,938
Deferred shares issued and delivered upon achievement of price target						1,600,000
Non-Voting Common Stock [Member]
Common stock, shares issued							17,185,500			17,185,500		17,185,500
Common stock, shares outstanding							17,185,500			17,185,500		17,185,500