DEBT (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Apr. 30, 2017
Debt Instrument [Line Items]
Short-term Debt	$ 2,573,000		$ 2,573,000		$ 5,648,000
Repayments of Long-term Debt			0	$ 453,000
Line of Credit Facility, Average Outstanding Amount	5,347,000	$ 6,083,000	5,812,000	$ 5,085,000
Short-term Debt [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 12,249,000		$ 12,249,000		$ 9,200,000
Short-term Debt [Member] | Base Rate borrowing [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.50%		0.50%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 16,000,000
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases						2,000,000
Capex Borrowing [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 1,600,000