Douglas Dynamics Earlier Reported Q4 EPS $0.53 vs $0.49 Est., Sales $137.97M vs $137.03M Est.; Raised Qtr. Dividend From $0.24 To $0.265/Share; Sees FY18 Adj. EPS $1.60-$2.20 vs $1.77 Est., Sales $475M-$535M vs $507M Est.