NL 25 KK easy shove?

[Babalatexi]

Party Poker No-Limit Hold'em, $0.25 BB (6 handed) Party Poker Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($23.87)
UTG ($4.61)
MP ($20.59)
Hero ($26.14)
Button ($18.59)
SB ($25.06)

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $1</font>, <font color="#666666">2 folds</font>, BB calls $0.75.

Flop: ($2.10) 3[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $1.75</font>, BB calls $1.75.

Turn: ($5.60) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $4.75</font>, BB calls $4.75.

River: ($15.10) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero...

Villain is 37/9 after just 30ish hands, seems bad, no other reads. Just wondering if a push here is really standard, villain only has a little over a psb left.