Thorson, 54, was famously played by Matt Damon in the HBO movie based on his life with the flamboyant Las Vegas performer in Behind the Candelabra.
As Radar exclusively reported in July, Thorson was given 60-months probation after pleading guilty to burglary and identity theft charges.
But once out on parole, Liberace's ex failed a mandatory drug test and has landed himself back in the slammer.
Moonlite Bunny Ranch owner Dennis Hof put up $15,000 to bail out Thorson earlier this year.
Thorson has been spending time at Hof’s famous Bunny Ranch in recent months.