SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Apr. 30, 2015 a
Accounts Receivable and Allowance for Doubtful Accounts
Allowance for doubtful accounts	$ 60,000.0	$ 35,000.0
Accounts receivable, net	4,220,000	3,361,000
Factoring Fees
Amortization of loan fees	123,900	130,100
Capitalization of loan fees	124,900
Banking expenses entered into a loan with MidCap	59,700	240,500
Advertising Expense
Gain (Loss) on Disposition of Property Plant Equipment	27,000	0
Amortization of loan fees included in interest expense	123,900	130,100
Customer Concentration Risk [Member]
Accounts Receivable and Allowance for Doubtful Accounts
Accounts receivable, net	$ 800,000	$ 400,000
Sales Revenue, Segment [Member] | Customer Concentration Risk [Member]
Accounts Receivable and Allowance for Doubtful Accounts
Major customer percentage	16.30%	12.50%
Minimum [Member]
Accounts Receivable and Allowance for Doubtful Accounts
Accounts receivable, past due period	30 days
Maximum [Member]
Accounts Receivable and Allowance for Doubtful Accounts
Accounts receivable, past due period	60 days
Affiliated Entity, LK Property Investments, LLC [Member] | ISA Real Estate LLC [Member]
Concentration Risk [Line Items]
Sale Leaseback Transaction, Area of Real Estate Property | a			4.4