SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Allowance for Doubtful Accounts Receivable	$ 952,000	$ 1,268,000
Advertising Expense	8,106,000	7,583,000
Return reserve	613,000	694,000
Operating Expenses 1	75,600,000	68,968,000
Shipping and Handling [Member]
Operating Expenses 1	$ 10,641,000	$ 8,932,000