STATEMENTS OF CASH FLOWS Table 1 (Details) - USD ($) $ in Thousands		12 Months Ended
	Mar. 01, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Decrease (increase) in current assets:
Receivable from related party, net	$ (16,014)	$ (993)	$ 1,134	$ 105
Income tax receivable		909	(1)	(13)
Other receivables		(32)	22	(14)
Other current assets		(117)	(8)	(407)
Increase (decrease) in current liabilities:
Accounts payable		(222)	16	296
Accrued compensation expense		(1,339)	(954)	(2,374)
Accrued liabilities		120	(97)	(99)
Taxes other than income tax		(1,662)	184	236
Changes in current assets and liabilities		$ (3,336)	$ 296	$ (2,270)