I totally get that. But, As an employee once myself, they don't know if you're making money or not.
We try to give our employees credit for seeing the little things that prove we are both stable and on solid financial ground. All of our suppliers are paid on time and ANYTHING the shop needs within reason is just a simple request away. Our employees are paid on time, every pay period without exception. On any pay day they could leave the shop, go to our bank and cash their check knowing with 100% certainty its good.
We laugh, make jokes, play music, bring in food we grow in our garden to share, buy a few meals a week for everyone, share gifts from clients, etc.
When something at the shop breaks, its fixed immediately. When a miscue or mistake is made, we don't freak out, counting pennies and start blaming everybody else. You fix it, make up the lost time and move on.
That all signals to the employee that they are valued and not just an interchangeable cog in a big wheel.
I've worked for plenty of folks who asked us not to cash our checks for a few days, who wouldn't know a cash bonus or holiday gift, paid half day off, paid lunch or breakfast if their lives depended on it. I've worked for plenty of folks who talked about their money issues constantly and yet, never passed up a nice vacation for themselves, new vehicles for anyone in their family, frequent fancy meals out, etc.
I once worked at a prominent, award winning environmental graphics/branding and landscape design firm with 20+ employees and several millions in annual revenue. They were the worst offenders I've ever worked for. They lived really high off the hog, but would squeeze every last minute out of an employee and then hold them ransom over this bizarre profit sharing/private pension plan they offered. You had to work there 5 years to be vested at all and if you left, all the money they were supposedly holding back from your checks went back into the pool for the sycophants, long time employees and owners themselves. They would go on lavish vacations and then force us all to sit through video presentations of them in the conference room. A co-worker I became friendly with told me hadn't had a COLA in like 10 years and a week after his last review, the owners showed up at the company picnic in a completely restored Mercedes convertible they had just purchased. His self esteem was so low, he actually fawned over the car while I and others plotted how to distract the owners while we all took turns peeing in it. They even stiffed my wife on some hors douvre trays her restaurant supplied for the picnic and holiday party later that year.
I lasted just under two years. I still go to their website to see how many long timers are still there.
Point being, pay your people what you can in relation to their contributions, keep it real with them, hold yourself responsible for the work flow, shop atmosphere and don't expect them to be idiots who can't see when you're treating them schmucks. Reward them with frequent praise, whatever gifts, bonuses, incentives, etc. you can do without creating an imbalance in the dynamic of who is in ultimately in charge. The inmates are not in charge of the asylum, but you can make them feel like they have a vested interest in when they get out.