DEBT	3 Months Ended
Mar. 31, 2018
Debt Disclosure [Abstract]
DEBT	DEBT Secured Revolving Credit Facility On April 29, 2015, we entered into a secured revolving credit facility with BMO Harris Bank N.A. ("Administrative Agent" or "Lender"); subsequently we entered into amendments one through four (collectively, the "Credit Agreement"). The Credit Agreement is effective through March 2022 and we may borrow the lesser of the borrowing base calculation and $50,000. As long as no default has occurred and with the Administrative Agent’s consent, we may increase the maximum availability to $70,000 in $5,000 increments. We may request letters of credit under the Credit Agreement in an aggregate amount equal to the lesser of the borrowing base calculation (minus outstanding advances) and $5,000. The borrowing base is generally defined as 85% of our eligible accounts receivable less certain reserves as defined in the Credit Agreement. Our borrowings bear interest at one-month LIBOR plus 1.50% to 1.75%, depending on current availability. We will pay letter of credit fees equal to the applicable margin times the daily maximum amount available to be drawn under all letters of credit outstanding and a monthly unused fee at a rate per annum of 0.25% on the aggregate unused commitment. As of March 31, 2018, outstanding letters of credit totaled $893. The Credit Agreement contains standard affirmative and negative covenants that may limit or restrict our ability to sell assets, incur additional indebtedness and engage in mergers and acquisitions. We are required to maintain a minimum consolidated fixed charge coverage ratio of 1.00:1.00, if a reporting trigger period commences. We were in compliance with applicable covenants as of March 31, 2018. As of March 31, 2018, we had $24,720 of outstanding borrowings and our remaining borrowing capacity was $18,618. Other Debt From time to time and when management believes it to be advantageous, we may enter into other arrangements to finance the purchase or construction of capital assets. These obligations are included on our consolidated balance sheets in other current debt and other debt, as applicable.

DEBT

Secured Revolving Credit Facility

On April 29, 2015, we entered into a secured revolving credit facility with BMO Harris Bank N.A. ("Administrative Agent" or "Lender"); subsequently we entered into amendments one through four (collectively, the "Credit Agreement"). The Credit Agreement is effective through March 2022 and we may borrow the lesser of the borrowing base calculation and $50,000. As long as no default has occurred and with the Administrative Agent’s consent, we may increase the maximum availability to $70,000 in $5,000 increments. We may request letters of credit under the Credit Agreement in an aggregate amount equal to the lesser of the borrowing base calculation (minus outstanding advances) and $5,000. The borrowing base is generally defined as 85% of our eligible accounts receivable less certain reserves as defined in the Credit Agreement.

Our borrowings bear interest at one-month LIBOR plus 1.50% to 1.75%, depending on current availability. We will pay letter of credit fees equal to the applicable margin times the daily maximum amount available to be drawn under all letters of credit outstanding and a monthly unused fee at a rate per annum of 0.25% on the aggregate unused commitment. As of March 31, 2018, outstanding letters of credit totaled $893.

The Credit Agreement contains standard affirmative and negative covenants that may limit or restrict our ability to sell assets, incur additional indebtedness and engage in mergers and acquisitions. We are required to maintain a minimum consolidated fixed charge coverage ratio of 1.00:1.00, if a reporting trigger period commences. We were in compliance with applicable covenants as of March 31, 2018.

As of March 31, 2018, we had $24,720 of outstanding borrowings and our remaining borrowing capacity was $18,618.

Other Debt

From time to time and when management believes it to be advantageous, we may enter into other arrangements to finance the purchase or construction of capital assets. These obligations are included on our consolidated balance sheets in other current debt and other debt, as applicable.