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Software Development Costs
6 Months Ended
Jun. 30, 2011
Notes to Financial Statements [Abstract]  
Software Development Costs
6.  
Software Development Costs

Certain computer software development costs are capitalized in the accompanying consolidated balance sheets.  Capitalization of computer software development costs begins upon the establishment of technological feasibility.  Capitalization ceases and amortization of capitalized costs begins when the software product is commercially available for general release to customers.  Amortization of capitalized computer software development costs is included in cost of revenue and is determined using the straight-line method over the remaining estimated economic life of the product, typically three years.

Software development costs capitalized were $207,000 and $386,000 for the three and six months ended June 30, 2011, respectively, and $269,000 and $475,000 for the three and six months ended June 30, 2010, respectively. Total amortization expense was $203,000 and $394,000 for the three and six months ended June 30, 2011, respectively, and $144,000 and $282,000 for the three and six months ended June 30, 2010, respectively.