ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration Risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Concentration Risk [Line Items]
Sales by product	$ 79,563	$ 81,691
% of total net sales	49.80%	53.90%
Abrotose Life [Member] [Member] | Product Concentration Risk
Concentration Risk [Line Items]
Sales by product	$ 28,776	$ 36,066
% of total net sales	18.00%	23.80%
Advanced Ambrotose [Member] | Product Concentration Risk
Concentration Risk [Line Items]
Sales by product	$ 11,158	$ 14,662
% of total net sales	7.00%	9.70%
TruHealth™ | Product Concentration Risk
Concentration Risk [Line Items]
Sales by product	$ 18,010	$ 16,263
% of total net sales	11.30%	10.70%
Advanced Ambrotose® | Product Concentration Risk
Concentration Risk [Line Items]
Sales by product	$ 13,141	$ 7,187
% of total net sales	8.20%	4.70%
GI-Pro (MicroBiome) | Product Concentration Risk
Concentration Risk [Line Items]
Sales by product	$ 8,478	$ 7,513
% of total net sales	5.30%	5.00%