STOCK COMPENSATION - Summary of Stock Option (Details)	9 Months Ended
	Sep. 30, 2019 USD ($) $ / shares shares
Options
Beginning balance (in shares) | shares	1,548,825
Grants (in shares) | shares	296,500
Exercises (in shares) | shares	(75,000)
Cancellations (in shares) | shares	(6,750)
Expirations (in shares) | shares	(240,125)
Ending balance (in shares) | shares	1,523,450
Options exercisable, end of period (in shares) | shares	1,040,172
Unrecognized stock option compensation cost | $	$ 1,554,000
Weighted-average years expected to be recognized over (in years)	1 year 7 months 6 days
Weighted- average exercise price
Beginning balance (usd per share) | $ / shares	$ 13.87
Grants (usd per share) | $ / shares	9.21
Exercises (usd per share) | $ / shares	4.28
Cancellations (usd per share) | $ / shares	13.34
Expirations (usd per share) | $ / shares	13.93
Ending balance (usd per share) | $ / shares	13.43
Weighted-average exercise price, Options exercisable, end of period (usd per share) | $ / shares	$ 14.44
Weighted- average remaining contractual life (years)
Options outstanding, end of period	5 years 2 months 12 days
Options exercisable, end of period	3 years 3 months 18 days
Aggregate intrinsic value
Options outstanding, end of period | $	$ 7,200
Options exercisable, end of period | $	$ 7,200