It's hard yards at the moment, but the balance of risk/reward is well in favour of staying in for mine.
Ralph polished this puppy until it was gleaming; gutsy call to halve the business and focus on MEMS, emphasis on volume production, paid back Tooth's loan with scarce cash resulting in no debt, and effective cost control (including his own salary). It things turn out well, he deserves his reputation as a turn-around CEO.
Nanodx has been disappointingly slow with the EUA, but there is sufficient independent evidence the wait will be well worth it,
SE1 Price at posting:
4.8¢ Sentiment: Buy Disclosure: Held