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Summary of Significant Accounting Policies (Details 3) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]    
Denominator for basic net loss per share - weighted average shares 11,941,000 11,776,000
Effect of dilutive securities: Stock options, restricted stock and restricted stock units   231,000
Denominator for diluted net loss per share - weighted average shares 11,941,000 12,007,000