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Note J - Patents - Summary of Patents (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Patents, cost $ 4,017,510 $ 1,377,543
Patents, accumulated amortization (1,227,762) (717,086)
Patents, net 2,789,748 660,457
Foundation Intellectual Property Patents [Member]    
Patents, cost 1,377,863 1,377,543
Patents, accumulated amortization (787,821) (717,086)
Patents, net 590,042 660,457
Epidural-Apad Patents [Member]    
Patents, cost 2,639,647
Patents, accumulated amortization (439,941)
Patents, net $ 2,199,706