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STOCK-BASED COMPENSATION - 2015 EIP Restricted Stock Units (Details) - Restricted Stock Units $ / shares in Units, $ in Thousands					3 Months Ended		6 Months Ended		12 Months Ended
	May 17, 2017 shares	Jul. 07, 2016 shares	May 18, 2016 shares	Feb. 17, 2016 item shares	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2016 USD ($)	Dec. 31, 2016 $ / shares shares
Directors
Number of Shares
Granted (in shares)	25,197		666,664
2015 EIP Plan
Number of Shares
Balance at the beginning of the period (in shares)							66,666
Granted (in shares)							317,595
Vested (in shares)				(23,286)			(66,666)
Balance at the end of the period (in shares)					317,595		317,595		66,666
Vested, post stock reverse split (in shares)		2,328
Number of resignations from the Board of Directors | item				2
Weighted Average Fair Value
Balance at the beginning of the period (in dollars per share) | $ / shares							$ 5.10
Granted (in dollars per share) | $ / shares							11.05
Vested (in dollars per share) | $ / shares							5.10
Balance at the end of the period (in dollars per share) | $ / shares					$ 11.05		$ 11.05		$ 5.10
Weighted-average remaining contractual life							2 years 2 months 5 days
Additional disclosures
Total fair value of shares vested | $							$ 675	$ 30
Unrecognized compensation cost related to nonvested stock awards
Unrecognized compensation cost | $					$ 2,645		$ 2,645
Weighted-average period for recognition of unrecognized compensation cost							2 years 2 months 5 days
2015 EIP Plan | General and Administrative Expense.
Additional disclosures
Recognized nonvested stock amortization expense | $					$ 833	$ 79	$ 992	$ 234
2015 EIP Plan | Vested RSUs
Number of Shares
Number of shares vested					74,106		74,106
Weighted Average Fair Value
Vested (in dollars per share) | $ / shares							$ 11.73
2015 EIP Plan | Directors
Nonvested Stock Awards
Vesting period of awards							3 years
Number of Shares
Number of common shares outstanding in respect of RSUs							21,372		3,138
2015 EIP Plan | Eugene Davis
Number of Shares
Number of common shares issued in respect of RSUs	18,234

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