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Concentration of Cash	6 Months Ended
Concentration of Cash	Jun. 30, 2017
Concentration of Cash [Abstract]
Concentration of Cash	10. Concentration of Cash Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash. The Company maintains cash with financial institutions which, at times, may exceed federally insured limits. The Company believes it is not exposed to any significant credit risk on cash.