(LOSS) EARNINGS PER SHARE (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net (loss) income	$ (1,992,680)	$ (7,225,831)	$ (572,588)	$ 82,078	$ (14,769)	$ (953,362)	$ (9,791,099)	$ (886,053)
Denominator:
Weighted-average shares outstanding - Basic	12,689,317			11,271,379			11,897,019	11,261,694
Stock options and restricted shares	0			0			0	0
Weighted-average shares outstanding - Diluted	12,689,317			11,271,379			11,897,019	11,261,694
(Loss) income per share
-Basic	$ (0.16)			$ 0.01			$ (0.82)	$ (0.08)
-Diluted	$ (0.16)			$ 0.01			$ (0.82)	$ (0.08)