Citing a sluggish art market, Delaware Art Museum leaders now expect to raise only $19.8 million by selling three works of art.

That amount is enough to retire the museum's construction debt from a 2005 facilities expansion. But it's not enough to replenish the museum's endowment, or reserve fund, which helps a nonprofit institution weather economic downturns.

Facing an October deadline from creditors, the museum board voted last spring to sell up to four artworks in its 12,500-piece collection to raise $30 million to repay the construction debt and replenish the endowment, which had been depleted for years to cover operational expenses. After exhausting fundraising efforts, officials said the museum was in danger of shutting down.