Investments Gross realized gains and losses (Tables)

12 Months Ended

Dec. 31, 2018

Debt Securities, Available-for-sale [Line Items]

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

Gross realized gains and losses on available-for-sale investments, limited liability investments and limited liability investments, at fair value for the years ended December 31, 2018 and December 31, 2017 is comprised as follows:

(in thousands)	Years ended December 31,
	2018			2017
				(restated)
Gross realized gains	$	398		$	309
Gross realized losses	(415		)	(3		)
Net realized (losses) gains	$	(17	)	$	306