STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE - Antidilutive Securities Excluded (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from earnings per share	15,102,326	14,270,765
Options to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from earnings per share	1,108,029	1,081,716
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from earnings per share	337,931	351,628
Warrants to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from earnings per share	2,600,000	2,535,890
Convertible preferred stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Antidilutive securities excluded from earnings per share	11,056,366	10,301,531