Substantial doubt about the company's ability to continue as a going concern.

“Since GBC can choose to limit the Company’s access to its line of credit under the GBC Credit Facility at any time and successful negotiation of an amendment to the GBC Credit Facility or a waiver from GBC cannot be guaranteed, substantial doubt exists about the Company’s ability to continue as a going concern over the 12 months following the filing date of this report on Form 10-Q.”