Douglas Dynamics (PLOW) came out with quarterly earnings of $0.09 per share, beating the Zacks Consensus Estimate of a loss of $0.16 per share. This compares to loss of $0.29 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of 156.25%. A quarter ago, it was expected that this snowplow maker would post earnings of $0.37 per share when it actually produced earnings of $0.39, delivering a surprise of 5.41%.Over the last four quarters ...