DEBT (Schedule of Debt) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2014
Debt Instrument [Line Items]
Total debt	$ 7,368,000	$ 7,814,000
Current portion of long-term debt	(7,368,000)	(7,814,000)
Long-term debt, net of current maturities	0	0
Term loan
Debt Instrument [Line Items]
Total debt	4,000,000	4,000,000
Proceeds from issuance of long-term debt	$ 4,000,000
Current interest rate (as a percent)	9.10%
Future debt extinguishment costs	$ 120,000
Prepayment penalty percentage of outstanding balance (as a percent)	1.00%
Increase in interest rate in case of debt default (as a percent)	5.00%
Convertible promissory notes
Debt Instrument [Line Items]
Total debt	$ 125,000	$ 571,000
Annual interest rate (as a percent)		6.00%	6.00%
Revolving credit facility | Line of credit
Debt Instrument [Line Items]
Total debt	$ 3,243,000	$ 3,243,000
Annual interest rate (as a percent)	6.25%
Effective interest rate (as a percent)	6.75%
Commitment fee amount	$ 20,000
Commitment fee (as a percent)	0.50%
Revolving credit facility | Line of credit | Wall Street Journal prime rate
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.00%