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Income Taxes (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Income Taxes [Abstract]    
Federal tax benefit at statutory rate $ (2,830,000) $ (4,167,000)
State tax benefit, net of federal tax (142,000) (293,000)
Permanent differences 39,000 43,000
Change in statutory rate 86,000 216,000
Change in valuation allowance (1,934,000) 4,075,000
Change in federal tax rate 4,747,000
Other 34,000 126,000
Benefit for income taxes