CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Royalty income	$ 149	$ 136
General and administrative expenses	68	61
Income from operations	81	75
Interest income	1	1
Income before income tax provision	82	76
Provision for income taxes	0	0
Net income	$ 82	$ 76
Net income per share:
Basic and diluted	$ 0.00	$ 0.00
Weighted average shares outstanding:
Basic and diluted	230,293,141	230,293,141