Quarterly report pursuant to Section 13 or 15(d)

Prepaid Expenses and Other Current Assets (Details)

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Prepaid Expenses and Other Current Assets (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid rent $ 10,000
Prepaid offering costs 272,000 194,000
Prepaid insurance 31,000 19,000
Prepaid other 42,000 63,000
Prepaid professional fees 20,000 32,000
Current portion-deferred financing fees for letter of credit 15,000
Total $ 365,000 $ 333,000