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Insurance Financing Note Payable	6 Months Ended
Insurance Financing Note Payable	Jun. 30, 2019
Insurance Financing Note Payable [Abstract]
Insurance Financing Note Payable	9. Insurance Financing Note Payable On June 3, 2019, the Company entered into a short-term note payable for $1.9 million, bearing interest at 4.65% per annum to finance various insurance policies. Principal and interest payments related to this note will begin on July 3, 2019 and are paid on a straight-line amortization over a 10-month period with the final payment due on April 3, 2020. As of June 30, 2019, the Company’s insurance note payable balance was $1.9 million.