Investments Fixed maturities by contractual periods (Tables)

6 Months Ended

Jun. 30, 2017

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

Investments Classified by Contractual Maturity Date [Table Text Block]

(in thousands)	June 30, 2017
	Amortized Cost		Estimated Fair Value
Due in one year or less	$	7,518	$	7,504
Due after one year through five years	40,198		40,077
Due after five years through ten years	3,107		3,082
Due after ten years	6,349		6,302
Total	$	57,172	$	56,965

Schedule of Realized Gain (Loss) [Table Text Block]

(in thousands)	Three months ended June 30,						Six months ended June 30,
	2017			2016			2017			2016
Gross realized gains	$	735		$	214		$	1,159		$	248
Gross realized losses	(1		)	(147		)	(27		)	(352		)
Net realized gains (losses)	$	734		$	67		$	1,132		$	(104	)