Interest expense. Interest expense of $202,000 increased by $89,000 for the three month period ended June 30, 2019 as compared to interest expense of $113,000 for the three month period ended June 30, 2018. The increase in interest expense is due to the interest expense associated with the convertible debentures issued in December 2018. Interest expense of $411,000 increased by $156,000 for the six month period ended June 30, 2019 as compared to interest expense of $255,000 for the six month period ended June 30, 2018. The increase in interest expense is due to the interest expense associated with the convertible debentures issued in December 2018.
Interest income. Interest income was $64,000 and $29,000, respectively, for the three month periods ended June 30, 2019 and 2018. Interest income was $123,000 and $51,000, respectively, for the six month periods ended June 30, 2019 and 2018.
Loss on fair value of debentures. The Company recorded a loss of $1.9 million in the quarter ended June 30, 2019, which reflects an increase in the fair value of the Convertible Debentures from approximately $9.5 million at March 31, 2019 to $11.4 million at June 30, 2019. The Company recorded a loss of $4.5 million in the six months ended June 30, 2019, which reflects an increase in the fair value of the Convertible Debentures from approximately $6.9 million at December 31, 2018 to $11.4 million at June 30, 2018. The Company expects changes in the fair value of the Convertible Debentures to change from quarter to quarter as changes in the stock price of the Company drive changes in the underlying fair value of the instruments.
Tax expense. The Company had tax expense of $19,000 for the three month period ended June 30, 2019 as compared to tax expense of $4,000 for the three month period ended June 30, 2018. The Company had tax expense of $27,000 for the six month period ended June 30, 2019 as compared to tax expense of $17,000 for the six month period ended June 30, 2018. Tax expense is due primarily to statenon-income and franchise based taxes.
Liquidity and Capital Resources
We believe that our current liquidity and capital resources are sufficient to sustain operations through at least the next 12 months, primarily due to cash on hand. Our projected cash needs include planned capital expenditures, loan repayments, lease commitments, and other long-term obligations. The Company’s ability to generate cash adequate to meet its future capital requirements will depend primarily on operating cash flow. If sales or cash collections are reduced from current expectations, or if expenses and cash requirements are increased, the Company may require additional financing, although there are no guarantees that the Company will be able to obtain the financing if necessary. The Company will continue to closely monitor its liquidity and the capital and credit markets.
As of June 30, 2019, the Company had current assets of $29.8 million including $19.6 million of cash and cash equivalents. Current liabilities are $14.9 million and working capital is $14.9 million. The ratio of current assets to current liabilities is 2:1.
In June 2019, in connection with the Fourth Loan Modification, the Company and the Bank agreed to covenant levels for minimum revenue and EBITDA covenants (the “Covenants”) under the Loan Agreement for fiscal year 2019. The Company is in compliance with the Covenants for the quarter ended June 30, 2019.
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