STOCKHOLDERS' EQUITY (Details)		12 Months Ended
	Dec. 19, 2019 item $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares shares	Dec. 31, 2016 USD ($)
Capital Stock Shares authorized		120,000,000
Common Stock, Shares Authorized		79,999,997		79,999,997
Common Stock, Par or Stated Value Per Share | $ / shares		$ 0.01		$ 0.01
Preferred Stock, Shares Authorized		2		2
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01		$ 0.01
Special Stock, Shares Authorized		1		1
Special Stock, Par or Stated Value Per Share | $ / shares		$ 0.01		$ 0.01
Common Stock, Shares, Issued		37,612,465		37,161,068
Common Stock, Shares, Outstanding		31,881,961		31,647,284
Warrants, term	10 years
Warrants to purchase common stock issued (in shares)	7,179,000
Warrants, Exercise Price (in dollars per share) | $ / shares	$ 6.50	$ 6.50
Threshold minimum beneficial ownership (as a percent)	5.00%
Threshold maximum percentage of issued and outstanding common stock, after exercise of warrants (as a percent)	19.90%
Number of board members who can be appointed by the warrant holder | item	1
Preemptive rights period	5 years
Stock Issued During Period, Value, New Issues | $			$ 40,561,000
Stock repurchase program, authorized amount | $		$ 5,000,000
Stock repurchase program, shares repurchased (in shares)		49,394
Stock repurchase program, shares repurchased, amount | $		$ 149,000
Stock repurchase program, weighted average price (in dollars per share) | $ / shares		$ 3.01
Stock repurchase program, professional fees incurred | $		$ 48,000
Stock repurchase program, unsettled shares outstanding (in shares)		19,551
Stock Repurchased During Period Value Yet To Be Purchased | $		$ 4,800,000
Common Stock [Member]
Stock Issued During Period, Shares, New Issues			5,472,000
Stock Issued During Period, Value, New Issues | $			$ 55,000
At-The-Market Equity Offering Program [Member]
Stock Issuance Program, Maximum Amount Authorized | $					$ 12,000,000
Shares Issued, Price Per Share | $ / shares			$ 9.32
At-The-Market Equity Offering Program [Member] | Common Stock [Member]
Stock Issued During Period, Shares, New Issues			2,492
Stock Issued During Period, Value, New Issues | $			$ 23,000
Blank Check Preferred Stock [Member]
Preferred Stock, Shares Authorized		40,000,000		40,000,000
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01		$ 0.01
Special Stock, Shares Authorized		40,000,000