EARNINGS PER SHARE - Warrants (Details) shares in Thousands	Jun. 30, 2017 $ / shares shares
Warrants
Number of Warrants Outstanding | shares	884
Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 4.13
Period of expiration - Q1, 2018
Warrants
Number of Warrants Outstanding | shares	599
Period of expiration - Q1, 2018 | Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 4.12
Period of expiration - Q3, 2018
Warrants
Number of Warrants Outstanding | shares	16
Period of expiration - Q3, 2018 | Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 3.78
Period of expiration - Q4, 2019
Warrants
Number of Warrants Outstanding | shares	108
Period of expiration - Q4, 2019 | Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 4.81
Period of expiration - Q3, 2020
Warrants
Number of Warrants Outstanding | shares	110
Period of expiration - Q3, 2020 | Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 4.09
Period of expiration - Q1, 2021
Warrants
Number of Warrants Outstanding | shares	51
Period of expiration - Q1, 2021 | Weighted Average
Warrants
Weighted Average Exercise Price | $ / shares	$ 2.91