EQUITY - Narrative (Details)					3 Months Ended		12 Months Ended
		Feb. 22, 2022 USD ($) $ / shares shares	May 05, 2021 USD ($) $ / shares shares	Nov. 29, 2018 USD ($) shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020	Dec. 15, 2015 USD ($)
Stockholders' Equity Note [Line Items]
Common stock, shares authorized (in shares) | shares					450,000,000		450,000,000
Common stock, par value (in dollars per share) | $ / shares					$ 0.01		$ 0.01
Common stock, shares issued (in shares) | shares					52,225,152		24,947,883
Common stock, shares outstanding (in shares) | shares					52,225,152		24,947,883
Stock repurchase program, authorized amount									$ 10,000,000
Preferred stock, shares authorized (in shares) | shares					50,000,000		50,000,000
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01		$ 0.01
Preferred stock, shares issued (in shares) | shares					2,400,000		2,400,000
Preferred stock, shares outstanding (in shares) | shares					2,400,000		2,400,000
Dividends payable	[1]				$ 4,134,717		$ 3,242,809
Noncontrolling interests	[1]				99,500		$ 99,500
Dividends on the HCMT Preferred Shares					$ 1,184,958	$ 3,708
Redeemable Preferred Stock
Stockholders' Equity Note [Line Items]
Preferred stock, shares authorized (in shares) | shares					50,000,000		50,000,000
Preferred stock, par value (in dollars per share) | $ / shares					$ 0.01		$ 0.01
Preferred stock, shares issued (in shares) | shares			2,400,000		2,400,000		2,400,000
Preferred stock, shares outstanding (in shares) | shares					2,400,000		2,400,000
Proceeds from issuance of redeemable preferred stock			$ 58,100,000
Series A Preferred Stock
Stockholders' Equity Note [Line Items]
Preferred stock, liquidation preference (in dollars per share) | $ / shares			$ 25.00
Stock Repurchase Program
Stockholders' Equity Note [Line Items]
Stock repurchase program, authorized amount									$ 10,000,000
Number of shares repurchased (in shares) | shares					126,856
Weighted average share price of common stock repurchased (in dollars per share) | $ / shares					$ 5.09
Common stock repurchase activity (in shares) | shares					0
Stock repurchase program, remaining authorized amount					$ 9,400,000
Common Stock
Stockholders' Equity Note [Line Items]
Issuance of common stock (in shares) | shares		27,277,269			27,277,269
Common stock, shares issued (in dollars per share) | $ / shares		$ 3.06
Proceeds from issuance of common stock		$ 83,500,000
Dividends payable					$ 3,133,509
Dividends payable, amount per share (in dollars per share) | $ / shares					$ 0.06
Noncontrolling interests
Stockholders' Equity Note [Line Items]
Dividends payable					$ 3,708
Preferred dividends paid					$ 3,708
Noncontrolling interests | Series A Preferred Stock
Stockholders' Equity Note [Line Items]
Number of shares issued (in shares) | shares				125
Noncontrolling interests				$ 99,500
Equity raised				125,000
Non-controlling interests expenses				$ 25,500
Dividend rate percentage (as a percent)				12.00%
Redemption price ratio								1.1
Dividends on the HCMT Preferred Shares							$ 15,000

[1] Our consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs") as the Company was the primary beneficiary of these VIEs. As of March 31, 2022 and December 31, 2021, assets of consolidated VIEs totaled $1,002,685,982 and $1,003,896,995, respectively and the liabilities of consolidated VIEs totaled $828,126,768 and $827,390,435 respectively. See Note 4 for further discussion.