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Summary of Significant Accounting Policies (Details 5) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Denominator for basic net loss per share - weighted average shares 1,734,000 1,706,000
Effect of dilutive securities: stock options, restricted stock and restricted stock units 0 0
Denominator for diluted net loss per share - weighted average shares 1,734,000 1,706,000