Terms have been agreed for the 27-year-old striker moving to the Super First Division promotion challengers, but his move is on hold until the southside club's fourth-round clash with Beith is concluded.
Jamie was always going to provide attacking cover against the Ayrshiremen but his place in the squad has become more important with marksman Willie Sawyers rated extremely doubtful for the Newlandsfield head-to-head.
Doc said: "A number of clubs made signing approaches after the news broke that I was looking to get away from Pollok. I was sold on joining the Glens after talks with their manager Willie Harvey, who comes across as a really genuine guy with ambitious plans for his team.
"It also helps that my former Rob Roy team-mates Dean Muir, Kevin Bell and Andy Ward are on the Glens books so I should have no problems settling in.
"It's no secret that I'd have stayed put at Pollok if there was a chance of me getting more game time, but having just one start to my name all season – ironically against Neilston in the Scottish which has cup-tied me – speaks volumes about where I stand in the pecking order."
He continued: "My transfer would probably have been done and dusted by now were it not for Willie damaging ankle ligaments against Irvine Meadow at the start of this month.
"He's working his way back to full fitness but John Richardson asked me to delay my move until after the Beith game as a precautionary measure and it seemed no big deal given I cannot feature for Glencairn as they are also involved in the Emirates Cup.
"Well it's now looking like I might have more than a cameo role to fulfil because Willie aggravated his ankle problem on Saturday during a training game and his chances of being passed fit to face Beith must be slim at best."
Lok boss Richardson said: "We were playing a non-contact game but Willie has tweaked his ankle in attempting to turn sharply away from a defender.
"It's disappointing as he and Carlo Monti had linked well together so our hope is the damage is not as bad as first feared and we'll therefore monitor his recovery for the rest of this week before making any decision. Keeping Jamie in and around us has worked out well."
Docherty was on the mark for the Glens when he scored their first goal in a 3-2 friendly win over Arthurlie last night.
Elsewhere, Kilwinning are putting up a club strip signed by their players and backroom team for auction after an eight-year-old supporter was diagnosed with cancer. All money raised will go towards the Schiehallion Ward at Yorkhill's Royal Hospital for Sick Children.
Any parties interested in making an offer for the strip or donating to the cause can do so at www.kilwinningrangers cc.co.uk