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Note 7 - Income Taxes (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Summary of Operating Loss Carryforwards [Table Text Block]

Tax Year End

 

NOL

  

Expiration

 

2004

 $1,621,096   2024 

2005

  1,788,157   2025 

2006

  1,350,961   2026 

2007

  1,740,724   2027 

2008

  918,960   2028 

2009

  835,322   2029 

2010

  429,827   2030 

2013

  504,862   2033 

2016

  474,465   2036 

2017

  1,267,336   2037 

Total

 $10,931,710