Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details 2)

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Income Taxes (Details 2) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Net operating loss carryforwards (NOLs) $ 8,302,000 $ 8,018,000
Stock-based compensation expense 2,500,000 2,024,000
Accrued expenses and unpaid expense payable 382,000 309,000
Tax credit carryforwards 68,000 68,000
Unrealized investment loss 266,000 144,000
Unrealized exchange losses (gain) 80,000 (193,000)
Excess of tax amortization over book amortization (505,000) (577,000)
Others (140,000) (173,000)
Gross 10,953,000 9,620,000
Valuation allowance (10,953,000) (9,620,000)
Net