Recent Accounting Pronouncements Details (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

The cumulative effect of applying the new revenue standard, primarily relating to financing components of contracts executed in prior periods and estimates of variable consideration for sales and usage based royalty agreements executed in prior periods, was as follows (in thousands):

	Balance at December 31, 2017			Adjustments		Balance at January 1, 2018
Balance Sheets:
Accounts receivable	$	153		$	4,542	$	4,695
Royalties and contingent legal fees payable	1,601			1,728		3,329
Accumulated deficit	(320,018		)	2,506		(317,512		)
Noncontrolling interests	1,358			308		1,666

The impact of the adoption of the new accounting standard on the consolidated balance sheet and statement of operations was as follows (in thousands):

	Balance as Reported		Balance at January 1, 2018 Prior to Adoption		Effect of Change
Balance Sheets:
Accounts receivable	$	5,629	$	3,599	$	2,030
Royalties and contingent legal fees payable	4,765		3,953		812
Statements of Operations:
Revenues	$	68,578	$	66,548	$	2,030
Inventor royalties	22,985		22,287		698
Contingent legal fees	16,796		16,682		114