Annual report pursuant to Section 13 and 15(d)

Income Taxes - Components Of Deferred Tax assets And liabilities (Details)

v3.20.4
Income Taxes - Components Of Deferred Tax assets And liabilities (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Deferred Tax Assets:      
Net Operating Loss Carry-forwards $ 29,264,829 $ 25,678,591 $ 20,920,285
Tax Credit Carry-forwards 3,778,001 3,535,863 3,035,384
Inventory Valuation Adjustment 847,441 982,160 104,450
Stock-Based Compensation 208,803   175,753
Lease Obligation Liability 323,186 446,488  
Other 368,243 263,348 207,327
Total Deferred Tax Assets 34,790,503 30,906,450 24,443,199
Deferred Tax Liabilities:      
Income from Foreign Operations 10,727   59,123
Lease Right of Use Asset 323,186 446,488  
Other 27,262 14,335 22,069
Total Deferred Tax Liabilities 361,175 460,823 81,192
Net Deferred Tax Assets Before Valuation Allowance 34,429,328 30,445,627 24,362,007
Valuation Allowance $ (34,429,328) $ (30,445,627) $ (24,362,007)