EQUITY INCENTIVE PLAN - Schedule of Stock Award Activity (Details) - Stock Awards Activity [Member]	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Number of Shares
Unvested equity awards outstanding at beginning of period (in shares) | shares	296,940
Grants (in shares) | shares	240,847
Vestings (in shares) | shares	(76,696)
Unvested equity outstanding at end of period (in shares) | shares	461,091
Weighted Average Grant Date Fair Value
Unvested equity awards outstanding at beginning of period (in dollars per share) | $ / shares	$ 9.90
Grants (in dollars per share) | $ / shares	8.60
Vestings (in dollars per share) | $ / shares	11.15
Unvested equity awards outstanding at end of period (in dollars per share) | $ / shares	$ 9.01