Revolving Credit Facility	9 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]
Revolving Credit Facility	5. Revolving credit facility — We have a credit agreement providing for an asset-based, five-year senior secured revolving credit facility in the amount of up to $180.0 million which matures on August 18, 2020 (the “Revolving Credit Facility”). The availability of funds under the Revolving Credit Facility is limited to the lesser of a calculated borrowing base and the lenders’ aggregate commitments under the Revolving Credit Facility. Our indebtedness under the Revolving Credit Facility is secured by a lien on substantially all of our assets. The Revolving Credit Facility contains certain restrictive covenants, which affect, among others, our ability to incur liens or incur additional indebtedness, change the nature of our business, sell assets or merge or consolidate with any other entity, or make investments or acquisitions unless they meet certain requirements. The Revolving Credit Facility requires that we satisfy a fixed charge coverage ratio at any time that our availability is less than the greater of 10% of our calculated borrowing base or $12.5 million. Our Revolving Credit Facility may, in some instances, limit our ability to pay cash dividends and repurchase our common stock. In order for the borrower under the Revolving Credit Facility, our subsidiary, to make a restricted payment to us for the payment of a dividend or a repurchase of shares, we must, among other things, maintain availability of 20% of the lesser of our calculated borrowing base or our lenders’ aggregate commitments under the Revolving Credit Facility on a pro forma basis for a specified period prior to and immediately following the restricted payment. As of March 31, 2017, we were in compliance with all of the Revolving Credit Facility covenants. At March 31, 2017, we had $41.0 million outstanding under the Revolving Credit Facility, $5.5 million of outstanding letters of credit and availability of $82.9 million under the Revolving Credit Facility. Letters of credit under the Revolving Credit Facility are primarily for self-insurance purposes. We incur commitment fees of up to 0.25% on the unused portion of the Revolving Credit Facility, payable quarterly. Any borrowing under the Revolving Credit Facility incurs interest at LIBOR or the prime rate, plus an applicable margin, at our election (except with respect to swing loans, which incur interest solely at the prime rate plus the applicable margin), subject to a floor of one month LIBOR plus an applicable margin in the case of loans based on the prime rate. These rates are increased or reduced as our average daily availability changes. Interest expense for the third quarter of the current fiscal year of $0.4 million was comprised of commitment fees of $0.1 million, interest expense of $0.2 million and the amortization of financing fees of $0.1 million. Interest expense for the third quarter of the prior fiscal year of $0.2 million was comprised of commitment fees of $0.1 million and the amortization of financing fees of $0.1 million. Interest expense for the nine months ended March 31, 2017 of $1.0 million was comprised of commitment fees of $0.3 million, interest expense of $0.4 million and the amortization of financing fees of $0.3 million. Interest expense for the nine months ended March 31, 2016 of $0.8 million was comprised of commitment fees of $0.4 million and the amortization of financing fees of $0.4 million.

5. Revolving credit facility — We have a credit agreement providing for an asset-based, five-year senior secured revolving credit facility in the amount of up to $180.0 million which matures on August 18, 2020 (the “Revolving Credit Facility”). The availability of funds under the Revolving Credit Facility is limited to the lesser of a calculated borrowing base and the lenders’ aggregate commitments under the Revolving Credit Facility. Our indebtedness under the Revolving Credit Facility is secured by a lien on substantially all of our assets. The Revolving Credit Facility contains certain restrictive covenants, which affect, among others, our ability to incur liens or incur additional indebtedness, change the nature of our business, sell assets or merge or consolidate with any other entity, or make investments or acquisitions unless they meet certain requirements. The Revolving Credit Facility requires that we satisfy a fixed charge coverage ratio at any time that our availability is less than the greater of 10% of our calculated borrowing base or $12.5 million. Our Revolving Credit Facility may, in some instances, limit our ability to pay cash dividends and repurchase our common stock. In order for the borrower under the Revolving Credit Facility, our subsidiary, to make a restricted payment to us for the payment of a dividend or a repurchase of shares, we must, among other things, maintain availability of 20% of the lesser of our calculated borrowing base or our lenders’ aggregate commitments under the Revolving Credit Facility on a pro forma basis for a specified period prior to and immediately following the restricted payment. As of March 31, 2017, we were in compliance with all of the Revolving Credit Facility covenants.

At March 31, 2017, we had $41.0 million outstanding under the Revolving Credit Facility, $5.5 million of outstanding letters of credit and availability of $82.9 million under the Revolving Credit Facility. Letters of credit under the Revolving Credit Facility are primarily for self-insurance purposes. We incur commitment fees of up to 0.25% on the unused portion of the Revolving Credit Facility, payable quarterly. Any borrowing under the Revolving Credit Facility incurs interest at LIBOR or the prime rate, plus an applicable margin, at our election (except with respect to swing loans, which incur interest solely at the prime rate plus the applicable margin), subject to a floor of one month LIBOR plus an applicable margin in the case of loans based on the prime rate. These rates are increased or reduced as our average daily availability changes. Interest expense for the third quarter of the current fiscal year of $0.4 million was comprised of commitment fees of $0.1 million, interest expense of $0.2 million and the amortization of financing fees of $0.1 million. Interest expense for the third quarter of the prior fiscal year of $0.2 million was comprised of commitment fees of $0.1 million and the amortization of financing fees of $0.1 million. Interest expense for the nine months ended March 31, 2017 of $1.0 million was comprised of commitment fees of $0.3 million, interest expense of $0.4 million and the amortization of financing fees of $0.3 million. Interest expense for the nine months ended March 31, 2016 of $0.8 million was comprised of commitment fees of $0.4 million and the amortization of financing fees of $0.4 million.