COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)				12 Months Ended
	Apr. 11, 2019	Mar. 21, 2018	Mar. 12, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2016
Loss Contingencies [Line Items]
Operating Leases, Rent Expense, Net				$ 300,000	$ 200,000
Capital leases of lessee, Interest Rate				7.25%
Amortization of Leased Asset				$ 29,000	48,000
New Haven, Connecticut Operating Lease [Member] | Minimum
Loss Contingencies [Line Items]
Operating Leases, Rent Expense, Monthly				13,400
New Haven, Connecticut Operating Lease [Member] | Maximum
Loss Contingencies [Line Items]
Operating Leases, Rent Expense, Monthly				14,600
Omaha, Nebraska Operating Lease [Member] | Minimum
Loss Contingencies [Line Items]
Operating Leases, Rent Expense, Monthly				2,300
Omaha, Nebraska Operating Lease [Member] | Maximum
Loss Contingencies [Line Items]
Operating Leases, Rent Expense, Monthly				2,800
Mount Sinai
Loss Contingencies [Line Items]
Loss contingency, damages sought						$ 700,000
Loss contingency accrual				0	500,000		$ 700,000
Litigation Settlement, Installment Payment Amount				$ 9,472
Debt Instrument, Interest Rate, Stated Percentage				10.00%
Secured Debt				$ 500,000
Debt Instrument, Periodic Payment				$ 9,472
Class of Warrant or Right, Outstanding				24,900
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 7.50
Class of Warrant or Right, Term				5 years
XIFIN, Inc.
Loss Contingencies [Line Items]
Loss contingency, damages sought				$ 270,000
Loss contingency accrual				100,000	$ 200,000
Loss Contingency Accrual, Payments				100,000
CPA Global
Loss Contingencies [Line Items]
Loss contingency, damages sought				200,000
Loss contingency accrual				100,000
Crede Capital Group LLC
Loss Contingencies [Line Items]
Litigation settlement in favor of other party, amount			$ 1,925,000
Leviston [Member]
Loss Contingencies [Line Items]
Loss contingency accrual				$ 700,000
Bio-Rad Laboratories
Loss Contingencies [Line Items]
Litigation settlement in favor of other party, amount		$ 39,000
Loss Contingency Accrual, Payments		$ 100,000
Bio-Rad Laboratories | Subsequent Events
Loss Contingencies [Line Items]
Damages paid	$ 39,000