Revenue Disaggregation (Details - Disaggregation of revenue) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 12,735	$ 13,272
Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,313	11,926
Human Care [Member] | Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	10,110	9,426
Animal Care [Member] | Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,203	2,500
Service And Royalty [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 422	$ 1,346