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Summary of Significant Accounting Policies (Details 2) - shares
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Accounting Policies [Abstract]    
Denominator for basic net loss per share - weighted average shares 1,751,000 1,724,000
Effect of dilutive securities: stock options and restricted stock units and awards 0 0
Denominator for diluted net loss per share - weighted average shares 1,751,000 1,724,000