STOCKHOLDERS' EQUITY (Common Stock) (Details)										1 Months Ended			12 Months Ended
	Jun. 14, 2016 USD ($) shares	May 31, 2016 shares	Jan. 08, 2016 USD ($) $ / shares shares	Jul. 07, 2015 USD ($) $ / shares shares	Feb. 27, 2015 USD ($) $ / shares $ / unit shares	Oct. 22, 2014 USD ($) $ / shares shares	Jan. 24, 2013 USD ($) $ / shares shares	Feb. 02, 2012 USD ($) $ / shares shares	Dec. 29, 2010 USD ($) $ / shares shares	May 31, 2016 shares	Jan. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2011 USD ($)	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Jun. 07, 2016 shares	Jan. 06, 2016 $ / shares	Jun. 30, 2015 $ / shares shares	Jan. 20, 2015 USD ($)	Jan. 15, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Oct. 21, 2014 $ / shares shares	Mar. 05, 2014 $ / shares shares	Jan. 31, 2013 $ / shares shares
Class of Stock [Line Items]
Common stock, shares authorized													150,000,000	150,000,000
Proceeds from issuance of common stock and convertible notes | $									$ 6,000,000
Common stock, shares issued													26,446,927	13,915,691
Common stock warrants term								5 years
Common stock warrant, common stock called (in shares)				2,188,177	1,881,396	1,309,785	691,656	948,333					1,387,685	1,387,685			1,881,396		1,483,161	1,309,785	1,212,665		1,097,600
Initial valuation of warrant issued in conjunction with Private Placement | $													$ 1,827,000	$ 0
Common stock warrant, exercise price (in usd per share) | $ / shares				$ 6.50	$ 7.56	$ 10.86		$ 15.00					$ 10.25	$ 10.25			$ 7.56		$ 9.59	$ 10.86	$ 11.73		$ 12.96
Stock issuance costs | $								$ 1,330,000					$ 219,000
Payments of stock issuance costs, percentage of gross offering proceeds								7.00%
Payments of stock issuance costs, warrant right to purchase common stock shares								31,666
Payments of stock issuance costs, warrant right to purchase common stock shares, percentage of shares in offering								2.00%
Stock issuance costs, reimbursable expenses | $								$ 125,000
Payments of stock issuance costs, reduction to equity | $								$ 1,500,000
Private placement, net, shares				1,500,000			1,383,333
Share price (in usd per share) | $ / shares				$ 1.42			$ 6.00
Issuance of shares | $							$ 8,300,000						506,000
Shares converted (value) | $													$ 199,000	$ 0
Class of warrant or right, number of securities called by warrants or rights, price per share (in usd per share) | $ / shares							$ 9.00
Proceeds from issuance of common stock and warrants | $				$ 3,000,000
Preferred stock, shares outstanding													214,705	4,029,502
Shares issued for services (value) | $	$ 89,000												$ 89,000	$ 0
Issuance of common stock and related warrants, net | $													$ 475,000	$ 8,977,000
Craig-Hallum Capital Group LLC
Class of Stock [Line Items]
Common stock, sale price per share (in usd per share) | $ / shares											$ 1.21
Common stock warrants term				5 years							5 years
Common stock warrant, exercise price (in usd per share) | $ / shares				$ 1.66							$ 4.39
Prviate placement share issued											3,239,827
Stock issuance costs | $				$ 212,783							$ 140,000
Payments of stock issuance costs, percentage of gross offering proceeds				7.00%							7.00%
Payments of stock issuance costs, warrant right to purchase common stock shares				107,033							107,527
Stock issuance costs, reimbursable expenses | $				$ 50,000							$ 50,000
Share price (in usd per share) | $ / shares											$ 50
Craig-Hallum Capital Group LLC | Previously Reported
Class of Stock [Line Items]
Prviate placement share issued											2,188,177
Vendor
Class of Stock [Line Items]
Shares issued for services (shares)		78,000
Vendor II
Class of Stock [Line Items]
Shares issued for services (shares)	64,153
Series A Preferred Stock
Class of Stock [Line Items]
Common stock warrant, exercise price (in usd per share) | $ / shares									$ 2.32							$ 1.00
Convertible notes, common stock callable (in shares)									1,293,102
Stock issuance costs | $									$ 200,000
Common Stock
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)													2,280,517
Common Stock | Craig-Hallum Capital Group LLC
Class of Stock [Line Items]
Share price (in usd per share) | $ / shares											$ 1.00
Series A Warrants
Class of Stock [Line Items]
Common stock warrants term				5 years 6 months
Series B Warrants
Class of Stock [Line Items]
Common stock warrants term				5 years 6 months
Common stock warrant, exercise price (in usd per share) | $ / shares				$ 0.01
Share price (in usd per share) | $ / shares				1.42
Series A and Series B Warrants
Class of Stock [Line Items]
Common stock warrant, exercise price (in usd per share) | $ / shares				$ 1.66
2016 Warrant
Class of Stock [Line Items]
Common stock warrants term													5 years
Common stock warrant, exercise price (in usd per share) | $ / shares													$ 1.21
Common stock exchange price (in usd per share) | $ / shares													$ 0.50
Shares converted (shares)													1,006,419
Stock Warrant exchange amount | $													$ 1,400,000
2016 Warrant | Common Stock
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)													2,873,765
Common stock warrant, exercise price (in usd per share) | $ / shares													$ 0.25
Cash payment portion of stock warrants exercised | $													$ 718,441
Shares converted (shares)													1,613,353
Stock warrants settled with cash | $													$ 500,000
ATM Agreement | Craig-Hallum Capital Group LLC
Class of Stock [Line Items]
Common stock, shares authorized															3,500,000
Common stock, shares issued													1,177,849
Common stock, sale price per share (in usd per share) | $ / shares													$ 0.42
Common stock warrant, exercise price (in usd per share) | $ / shares													$ 4.23
Prviate placement share issued													3,362,276
Placement fees, percentage of gross sales price															3.25%
Issuance of common stock and related warrants, net | $													$ 500,000
ATM Agreement | Craig-Hallum Capital Group LLC | Previously Reported
Class of Stock [Line Items]
Prviate placement share issued													3,239,827
Convertible Promissory Note
Class of Stock [Line Items]
Debt instrument, face amount | $													$ 750,000							$ 750,000
Maximum
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)								823,333
Maximum | Series B Warrants
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)				700,000.0
Maximum | Series A and Series B Warrants
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)				1,200,000.0
Third Security LLC And Affiliates
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)							1,097,600															1,212,665
Common stock warrant, exercise price (in usd per share) | $ / shares							$ 12.96															$ 11.73
Convertible notes, warrants callable (in shares)								125,000
Affiliates of Third Security, LLC; January 2018
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)							250,000
Common stock warrant, exercise price (in usd per share) | $ / shares													$ 9
Private placement, net, shares							500,000
Security Purchase Agreement
Class of Stock [Line Items]
Issuance of shares | $			$ 2,200,000
Net proceeds from the offering | $			2,000,000
Security Purchase Agreement | Series A Preferred Stock
Class of Stock [Line Items]
Dividends | $			$ 400,000
Private placement, net, shares			2,365,243
Number of shares that can be purchased for each warrant			1.075269
Shares converted (shares)										2,150,538
Preferred stock, shares outstanding													214,705
Security Purchase Agreement | Common Stock
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)			1,773,929
Common stock warrant, exercise price (in usd per share) | $ / shares			$ 0.93
Number of shares that can be purchased for each warrant			0.93
Shares converted (shares)										2,150,538
Security Purchase Agreement | Series A Warrants
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)				1,161,972									1,161,972
Common stock exchange price (in usd per share) | $ / shares													$ 0.50
Stock Warrant exchange amount | $													$ 941,197
Security Purchase Agreement | Series A Warrants | Common Stock
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)													1,882,395
Common stock warrant, exercise price (in usd per share) | $ / shares													$ 0.25
Cash payment portion of stock warrants exercised | $													$ 470,599
Security Purchase Agreement | Maximum | Series A Warrants
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)													1,882,395
Private Placement
Class of Stock [Line Items]
Proceeds from issuance of common stock and convertible notes | $								$ 22,000,000				$ 3,000,000
Common stock, shares issued								1,583,333
Common stock, sale price per share (in usd per share) | $ / shares								$ 12
Common stock warrants term								5 years
Common stock warrant, common stock called (in shares)						365,388
Common stock warrant, exercise price (in usd per share) | $ / shares						$ 4.00
Private placement, net, shares						730,776
Share price (in usd per share) | $ / shares						$ 3.25
Issuance of shares | $						$ 2,375,000
Private Placement | Advisor
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)						9,230
Private Placement | Third Security LLC And Affiliates
Class of Stock [Line Items]
Convertible notes, common stock callable (in shares)								250,000
Additional Note Private Placement | Convertible Promissory Note
Class of Stock [Line Items]
Debt instrument, face amount | $																		$ 925,000
Additional Note Private Placement | Convertible Promissory Note | Craig-Hallum Capital Group LLC
Class of Stock [Line Items]
Debt instrument, face amount | $																			$ 46,250
Percentage of proceeds from sale and issuance of the Additional Notes																			5.00%
Two Thousand Fifteen Offering | Craig-Hallum Capital Group LLC
Class of Stock [Line Items]
Common stock warrant, common stock called (in shares)					714,780
Common stock warrant, exercise price (in usd per share) | $ / shares					$ 2.24
Private placement, net, shares					3,573,899
Number of shares that can be purchased for each warrant					0.20
Purchase price to the public (in usd per unit) | $ / unit					1.95
Purchase price of stock and warrants (in usd per unit) | $ / unit					1.8135
Net proceeds from the offering | $					$ 6,200,000