Taxes	6 Months Ended
Jun. 30, 2018
Taxes [Abstract]
Taxes	(7) Taxes: As of June 30, 2018, the Company's calendar years 2016, 2015 and 2014 remain subject to examination by the Internal Revenue Service. The effective federal tax rate on consolidated income for the three months ended June 30, 2018 was 18.6% compared to 41.7% on consolidated loss for the three months ended June 30, 2017. The effective federal tax rate on consolidated income for the six months ended June 30, 2018 was 16.4% compared to 49.2% on consolidated loss for the six months ended June 30, 2017. The effective federal income tax rate differs from the normal statutory rate primarily as a result of tax-exempt investment income. The decrease also reflects the reduced federal corporate income tax rate as a result of the enactment of the U.S. Tax Act in December 2017. The Company continues to analyze the different aspects of the U.S. Tax Act, which could potentially affect the provisional estimates that were recorded at December 31, 2017. During the six months ended June 30, 2018, the Company paid $6,000 in cash taxes.

Taxes

6 Months Ended

Jun. 30, 2018

(7) Taxes:

As of June 30, 2018, the Company's calendar years 2016, 2015 and 2014 remain subject to examination by the Internal Revenue Service.

The effective federal tax rate on consolidated income for the three months ended June 30, 2018 was 18.6% compared to 41.7% on consolidated loss for the three months ended June 30, 2017. The effective federal tax rate on consolidated income for the six months ended June 30, 2018 was 16.4% compared to 49.2% on consolidated loss for the six months ended June 30, 2017.

The effective federal income tax rate differs from the normal statutory rate primarily as a result of tax-exempt investment income. The decrease also reflects the reduced federal corporate income tax rate as a result of the enactment of the U.S. Tax Act in December 2017. The Company continues to analyze the different aspects of the U.S. Tax Act, which could potentially affect the provisional estimates that were recorded at December 31, 2017.

During the six months ended June 30, 2018, the Company paid $6,000 in cash taxes.