SHAREHOLDERS' EQUITY (DEFICIT) - OPTIONS OUTSTANDING BY EXERCISE RANGE (Details) - Stock options, employees and directors	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Options Outstanding
Number of options outstanding	1,689,555
Weighted average remaining contractual term	6 years 22 days
Options Exercisable
Number of options exercisable	945,260
Weighted average remaining contractual term	4 years 3 months 7 days
2.70
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 2.70
Options Outstanding
Number of options outstanding	35,000
Weighted average remaining contractual term	9 years 11 months 23 days
2.74
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 2.74
Options Outstanding
Number of options outstanding	312,780
Weighted average remaining contractual term	9 years 5 months 16 days
3.40
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.40
Options Outstanding
Number of options outstanding	35,000
Weighted average remaining contractual term	9 years 11 months 1 day
3.59
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.59
Options Outstanding
Number of options outstanding	5,000
Weighted average remaining contractual term	9 years 9 months
3.61
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.61
Options Outstanding
Number of options outstanding	772,136
Weighted average remaining contractual term	3 years 7 months 21 days
Options Exercisable
Number of options exercisable	684,434
Weighted average remaining contractual term	3 years 6 months
3.64
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.64
Options Outstanding
Number of options outstanding	13,000
Weighted average remaining contractual term	9 years 8 months 19 days
3.80
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.80
Options Outstanding
Number of options outstanding	25,000
Weighted average remaining contractual term	9 years 10 months 21 days
3.85
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.85
Options Outstanding
Number of options outstanding	23,250
Weighted average remaining contractual term	9 years 9 months 4 days
3.96
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 3.96
Options Outstanding
Number of options outstanding	5,178
Weighted average remaining contractual term	4 years 9 months 11 days
Options Exercisable
Number of options exercisable	5,178
Weighted average remaining contractual term	4 years 9 months 11 days
4.38
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 4.38
Options Outstanding
Number of options outstanding	3,500
Weighted average remaining contractual term	8 years 6 months 26 days
Options Exercisable
Number of options exercisable	1,459
Weighted average remaining contractual term	8 years 6 months 26 days
5.55
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 5.55
Options Outstanding
Number of options outstanding	5,000
Weighted average remaining contractual term	8 years 6 months 26 days
Options Exercisable
Number of options exercisable	2,084
Weighted average remaining contractual term	8 years 6 months 26 days
5.60
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 5.60
Options Outstanding
Number of options outstanding	200,100
Weighted average remaining contractual term	8 years 7 months 6 days
Options Exercisable
Number of options exercisable	83,382
Weighted average remaining contractual term	8 years 7 months 6 days
5.84
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 5.84
Options Outstanding
Number of options outstanding	248,798
Weighted average remaining contractual term	5 years 26 days
Options Exercisable
Number of options exercisable	165,817
Weighted average remaining contractual term	5 years 26 days
7.45
Options outstanding by exercise range
Range of Exercise Price (in dollars per share) | $ / shares	$ 7.45
Options Outstanding
Number of options outstanding	5,813
Weighted average remaining contractual term	8 years 5 months 9 days
Options Exercisable
Number of options exercisable	2,906
Weighted average remaining contractual term	8 years 5 months 9 days