Investments (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Held-to-maturity Securities [Line Items]

Schedule of Investments in Fixed Maturity Securities

At December 31, 2017, the Company’s amortized cost and fair values of fixed maturity securities are summarized as follows:

(in thousands)	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury securities, obligations of U.S. Government agencies and Municipalities	$	29,970	$	—	$	(206	)	$	29,764
Corporate debt	1,072		12		—			1,084
Total	$	31,042	$	12	$	(206	)	$	30,848

At March 31, 2018, the Company’s amortized cost and fair values of fixed maturity securities are summarized as follows: 

(in thousands)	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
U.S. Treasury securities, obligations of U.S. Government agencies and Municipalities	$	29,560	$	—	$	(318	)	$	29,242
Corporate debt	1,072		4		(3		)	1,073
Total	$	30,632	$	4	$	(321	)	$	30,315

Summary of Unrealized Loss Position

he following table shows the investments’ gross unrealized loss and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of March 31, 2018:

	Less than 12 Months					12 Months or More					Total
(in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities, obligations of U.S. Government agencies and Municipalities	$	16,235	$	(261	)	$	12,802	$	(57	)	$	29,037	$	(318	)
Corporate debt	803		(3		)	—		—			803		(3		)
Total	$	17,038	$	(264	)	$	12,802	$	(57	)	$	29,840	$	(321	)

December 31, 2017:

	Less than 12 Months					12 Months or More					Total
(in thousands)	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
U.S. Treasury securities, obligations of U.S. Government agencies and Municipalities	$	17,919	$	(157	)	$	11,845	$	(49	)	$	29,764	$	(206	)
Corporate debt	400		—			—		—			400		—
Total	$	18,319	$	(157	)	$	11,845	$	(49	)	$	30,164	$	(206	)

Amortized Cost and Fair Value of Fixed Maturity Securities by Contractual Maturity

The amortized cost and estimated fair value of the fixed maturity securities at March 31, 2018 by contractual maturity are set forth below:

(in thousands)	Amortized Cost		Fair Value
Years to maturity:
Due in one year or less	$	12,791	$	12,756
Due after one year through five years	17,609		17,325
Due after five years	232		234
Total	$	30,632	$	30,315

The amortized cost and estimated fair value of the fixed maturity securities at December 31, 2017 by contractual maturity are set forth below:

(in thousands)	Amortized Cost		Fair Value
Years to maturity:
Due in one year or less	$	16,934	$	16,899
Due after one year through five years	13,876		13,708
Due after five years	232		241
Total	$	31,042	$	30,848