Yes they did.
"Government Apologies and Reparations
Forced into confinement by the United States, 5,766 Nisei ultimately renounced their American citizenship. In 1968, nearly two dozen years after the camps were closed, the government began reparations to Japanese Americans for property they had lost.
In 1988, the U.S. Congress passed legislation which awarded formal payments of $20,000 each to the surviving internees—60,000 in all. This same year, formal apologies were also issued by the government of Canada to Japanese Canadian survivors, who were each repaid the sum of $21,000 Canadian dollars."
http://www.infoplease.com/spot/internment1.html
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