You can supplement this with a discounted cash flow analysis (calculator available here: Use an EPS of 0.014 and a growth rate of 250% for 2 years and then 0% thereafter. Using this, we can get a current valuation based on just 2 years growth at about £1 a share.
Some may argue a 250% growth rate is excessive - but for a company worth £20m producing something highly in demand very cheaply, this growth rate is achievable, but will slow down after 2-3 years as the company becomes mature. In any case, there is a forward PE valuation of 5.2 through earnings estimate and a share price estimate through DCF of £1 a share. I would expect a small, mushrooming company like this to have a PE of at least 15, which means that the share price needs to be at between 50p and £1 to warrant next year's valuation.
DYOR. IMHO this is probably the most attractive value and growth share in AIM at the moment.