STOCK-BASED COMPENSATION - Additional Information (Details) - USD ($)				12 Months Ended
	Jan. 01, 2023	Jan. 01, 2022	Jan. 01, 2021	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2024	May 04, 2017
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 7,285,192	$ 6,556,686
Unrecognized compensation expenses				$ 9,400,000	$ 12,100,000
Granted option awards (in shares)				3,038,000	4,575,641
Remaining average vesting period (in years)				2 years 2 months 23 days	2 years 3 months 3 days
Nonemployee Option
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 133,769	$ 626,977
Stock options to purchase common stock | Nonemployee Option
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 202,114	$ 575,995
Unvested stock options, outstanding (in shares)				98,542	127,459
Granted option awards (in shares)				45,000,000,000	0
Stock options to purchase common stock | Employee Option
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 7,500,000	$ 5,900,000
Unvested stock options, outstanding (in shares)				5,376,910	6,090,889
Unrecognized compensation expenses				$ 9,300,000	$ 11,500,000
Granted option awards (in shares)				2,993,000	4,575,641
Performance-based Option Awards
Stock-Based Compensation [Line Items]
Unvested stock options, outstanding (in shares)				0	100,000
Performance-based Option Awards | Nonemployee Option
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 0	$ 0
Performance-based Option Awards | Employee Option
Stock-Based Compensation [Line Items]
Share based compensation expense				$ 0	$ 100,000
2017 Equity Incentive Plan
Stock-Based Compensation [Line Items]
Number of common stock initially reserved for future issuance (in shares)				4,400,759			3,052,059
Percentage increase, outstanding stock maximum				5.00%
Number of additional shares reserved for issuance under the plan (in shares)	3,523,344	1,000,000
Stock option granted, term (in years)				10 years
Stock options, vesting period (in years)				4 years
Vested options, exercisable period				90 days
2017 Equity Incentive Plan | Maximum
Stock-Based Compensation [Line Items]
Vested options, exercisable period				18 months
2017 Equity Incentive Plan | Minimum
Stock-Based Compensation [Line Items]
Vested options, exercisable period				12 months
2017 Equity Incentive Plan | Subsequent Event
Stock-Based Compensation [Line Items]
Common stock, reserved for future issuance						3,534,600
2017 ESPP
Stock-Based Compensation [Line Items]
Number of additional shares reserved for issuance under the plan (in shares)			0
Common stock, reserved for future issuance							279,069
Percentage of discount from market price on purchase date				15.00%
Percentage increase, outstanding stock maximum				1.00%
Number of additional shares authorized (in shares)				550,000
2017 ESPP | Stock options to purchase common stock | Nonemployee Option
Stock-Based Compensation [Line Items]
Number of common stock initially reserved for future issuance (in shares)				352,846	416,607
Share based compensation expense				$ 57,148	$ 85,319
Share based compensation, number of shares purchased				63,761	76,455