HRCT's current market cap is $8.24 million. If you had $8.24 million to invest, would you buy the company?
That $8.24 million would provide you with a cash return of approx. $500,000 per year invested in government bonds. HRCT has produced no net income for the past 9 years with limited prospects of doing so in the future.
Looking at it that way, would you buy the company? If you wouldn't buy the whole company why would you buy a small part (shares) of it?
Why not put your investment in a company with much better prospects?