Long-Term Debt	3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]
Long-term debt	Note 8 – Long-term debt: During the first quarter of 2017, our wholly owned subsidiary, NLKW Holding, LLC had no borrowing or repayments under its $50 million secured revolving credit facility with Valhi. At March 31, 2017, we had outstanding borrowings of $0.5 million under such facility, and the remaining $49.5 million was available for future borrowing under this facility. Outstanding borrowings under such credit facility bear interest at the prime rate plus 1.875% per annum, and the average interest rate as of and for the period ending March 31, 2017 was 5.88% and 5.67%, respectively. We are in compliance with all of the convenants contained in such facility at March 31, 2017.

Long-Term Debt

3 Months Ended

Mar. 31, 2017

Note 8 – Long-term debt:

During the first quarter of 2017, our wholly owned subsidiary, NLKW Holding, LLC had no borrowing or repayments under its $50 million secured revolving credit facility with Valhi. At March 31, 2017, we had outstanding borrowings of $0.5 million under such facility, and the remaining $49.5 million was available for future borrowing under this facility. Outstanding borrowings under such credit facility bear interest at the prime rate plus 1.875% per annum, and the average interest rate as of and for the period ending March 31, 2017 was 5.88% and 5.67%, respectively. We are in compliance with all of the convenants contained in such facility at March 31, 2017.