ACCOUNTS RECEIVABLE AND REVENUES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Concentration of Credit Risk [Abstract]
Revenues	$ 5,903	$ 6,219	$ 14,233	$ 12,583
Revenue unearned	0		$ 0		$ 12
Minimum [Member]
Concentration of Credit Risk [Abstract]
Receivables payment term			30 days
Maximum [Member]
Concentration of Credit Risk [Abstract]
Receivables payment term			120 days
Revenue unearned	100		$ 100
Operating Segments [Member] | Food [Member]
Concentration of Credit Risk [Abstract]
Revenues	3,967	4,365	10,159	9,112
Operating Segments [Member] | Animal Nutrition [Member]
Concentration of Credit Risk [Abstract]
Revenues	$ 1,936	$ 1,854	$ 4,074	$ 3,471
Customer A [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage	10.00%	10.00%	9.00%	10.00%
Customer A [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage			14.00%		10.00%
Customer B [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage	8.00%	14.00%	13.00%	16.00%
Customer B [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage			32.00%		31.00%
Customer C [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage	3.00%	1.00%	2.00%	1.00%
Customer C [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration of Credit Risk [Abstract]
Concentration risk, percentage			8.00%		10.00%