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LIQUIDITY (Details) - USD ($) shares in Millions		3 Months Ended		9 Months Ended
	Oct. 01, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Oct. 05, 2025	Dec. 31, 2024
LIQUIDITY
Cash balances		$ 12,907,000		$ 12,907,000			$ 4,272,000
Net proceeds from common stock				$ 13,350,000	$ 1,089,000
Subsequent event
LIQUIDITY
Cash balances						$ 53,000,000
ATM Offering Agreement
LIQUIDITY
Number of common stock issued		6.7		13.8
Net proceeds from common stock				$ 10,100,000
ATM Offering Agreement | Subsequent event
LIQUIDITY
Number of common stock issued	22.2
Net proceeds from common stock	$ 43,300,000
2024 Lincoln Park PA
LIQUIDITY
Number of common stock issued		5.1		5.1
Net proceeds from common stock		$ 3,200,000	$ 0	$ 3,200,000	$ 0
Amount available for future sales		$ 26,200,000		$ 26,200,000

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