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           SUBSEQUENT EVENTS 
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        6 Months Ended | 
|---|---|
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           Jun. 30, 2013 
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| Subsequent Events [Abstract] | |
| Subsequent Events [Text Block] |                  9. SUBSEQUENT EVENTS
       Management Transition
       On July 29, 2013, the Company announced  that Harry Palmin, the Company’s President and CEO and  a Director, will step down from his positions with the Company, in  order to pursue other opportunities, upon the naming of his  successor. A search process is underway to select a replacement for  Mr. Palmin, during which time he will continue in his current roles  to ensure an orderly transition.       In addition, Kim Hawkins, the Company’s Vice President of  Clinical Development, has resigned effective August 9, 2013 in  order to accept a position at a large pharmaceutical company.       Kevin Kozak, M.D., Ph.D., the  Director of Radiation Oncology, Mercy Regional Cancer Center  Janesville Wisconsin, has agreed to  serve as Chief Medical Officer, effective August 1, 2013, on a  consulting basis.
       Amendment of Employment Agreement
       In connection with the management transition, on July 26, 2013, the  employment agreement between the Company and Harry Palmin,  President and CEO was amended to provide for a lump sum payment of  $150,000, equal to six months  base salary, to provide for the continuation of benefits for six  months following a termination without cause prior to March 31,  2014, to provide for the acceleration of vesting of all of Mr.  Palmin’s unvested options in the event of a termination  without cause or a resignation for good reason, to extend the  exercise period of Mr. Palmin’s options to a period of 18  months following termination, and to provide for the payment of  $150,000 to Mr. Palmin upon  the completion of certain milestones prior to September 30,  2013.       Entry into Retention Agreements
       Also in connection with the management transition, on July 26,  2013, the Company entered into retention agreements with two  executive officers. The retention agreements provide for the  payment of a retention bonus equal to thirty percent of the  executive’s salary if the executives remain employed with the  Company as of December 31, 2013. Furthermore, the agreements  provide for a lump-sum payment of six months base salary and  continuation of benefits for six months following a termination  without cause or resignation with good reason on or before June 30,  2014. Upon such a termination, all unvested options held by the  executives shall be credited with an additional six months vesting  and all vested options held by the executives shall be exercisable  for eighteen months following termination. A total of $392,000 may become payable to the  executives pursuant to the retention agreements.    |