Don;
Sincere congratulations and good luck.
I have been a small retail business owner for 31 years.
Doesn't matter if your selling nails, videos, or golf.A few suggestions:
The only thing that seperates you from the competition is YOU.
Be there,be visible and accessible.
Initially, I would suggest stationing yourself behind the 18th green, thank each finishing foursome personally,let them know your plans for improvements, solicit their advice and take notes on a simple yellow legal pad, offer them a free soft drink or modest discount coupon for a return round. It's better to meet your customers after the round their input will be more valuable after sampling the wares.
Become a "townie", what's the favorite group or organization within the town, Elks,Jaycees,Rotary,whatever. Do a mass mailing just within the zipcode, offer residents a discount or form an "inner club" for residents and regulars.
Offer senior rates and cater and cultivate that group to fill the mid-week tee sheets.
Solicit the fire and police depts, see if you can put together 'mini outings for them, start small and do a few really well and those guys will be big supporters.
Spend at least 80% of your advertising dollars locally, that's where your bread is buttered.
Contact the schools and start a junior program and if the high schools and college have golf teams offer practice rounds to them, make a modest donation to their booster clubs.
Make sure you do your accounting and maintainence chores in off hours, spend the bulk of your day in front of your customers, nobody sells like the owner.
Hope some of these help,best of luck to you.