Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Liabilities Other Than Goodwill (Details)

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Intangible Assets and Liabilities Other Than Goodwill (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 20,312 $ 23,649 $ 43,128 $ 47,748
Net credit to cost of sales for amortization of contract related intangible assets and liabilities $ 95,364 $ 113,442 203,361 286,734
Asset abandonment charge     $ 179,944 $ 0