Annual report pursuant to Section 13 and 15(d)

4. Goodwill and Intangible Assets: (Intangible Assets) (Details)

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4. Goodwill and Intangible Assets: (Intangible Assets) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 3,482,763 $ 2,492,674
Accumulated Amortization (2,243,810) 2,180,015
Total 1,238,953 312,659
Patents And Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 177,944 179,053
Accumulated Amortization (72,957) (60,875)
Total $ 104,986 $ 118,178
Weighted Average Useful Life (Years) 15 years 15 years
Customer and merchant Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 2,343,112 $ 1,620,112
Accumulated Amortization (1,507,024) (1,466,664)
Total $ 836,088 $ 153,448
Weighted Average Useful Life (Years) 10 years 10 years
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 197,868 $ 171,969
Accumulated Amortization (137,872) (130,936)
Total $ 59,996 $ 41,033
Weighted Average Useful Life (Years) 10 years 10 years
Acquired technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 684,540 $ 521,540
Accumulated Amortization (523,448) (521,540)
Total $ 161,092
Weighted Average Useful Life (Years) 10 years 10 years
Noncompete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 79,299
Accumulated Amortization (2,508)
Total $ 76,791