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Note 13 - Commitments and contingencies:
 12 Months Ended
Dec. 31, 2012
Commitments and Contingencies Disclosure [Text Block]
13. Commitments and contingencies:

(a)           The Company has several non-cancelable lease and purchase obligations primarily for general office facilities and equipment that expire over the next ten years. Future minimum payments under these agreements are as follows:

2013
 
$
2,017,000
 
2014
   
1,543,000
 
2015
   
1,481,000
 
2016
   
995,000
 
2017
   
953,000
 
Thereafter
   
1,584,000
 

Rental expense under operating lease agreements was $0.9 million, $0.9 million and $0.6 million for the years ended December 31, 2012, 2011 and 2010, respectively.

(b)           In the normal course of its operations, the Company becomes involved in various legal claims and lawsuits. The Company intends to vigorously defend these claims. While the final outcome with respect to any actions outstanding or pending as of December 31, 2012 cannot be predicted with certainty, it is the opinion of management that their resolution will not have a material adverse effect on the Company’s financial position.