17. Stock Benefit Plans and Stock-Based Compensation Option Activity (Details 1) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Shares
Options outstanding at December 31, 2015 | shares	703
Granted | shares	632
Exercised | shares	0
Cancelled | shares	(685)
Expired | shares	0
Options outstanding at December 31, 2016 | shares	650
Options vested and expected to vest as of December 31, 2016 | shares	491
Options vested and exercisable as of December 31, 2016 | shares	79
Average Exercise Price
Options outstanding at December 31, 2015 | $ / shares	$ 55.42
Granted | $ / shares	11.73
Exercised | $ / shares	0
Cancelled | $ / shares	43.15
Expired | $ / shares	0
Options outstanding at December 31, 2016 | $ / shares	25.85
Options vested and expected to vest, end of period | $ / shares	30.80
Options vested and exercisable, end of period | $ / shares	$ 70.34
Weighted Average Remaining Contractual Life Years
Options outstanding at December 31, 2016	9 years
Options vested and expected to vest, end of period	8 years 324 days
Options vested and exercisable, end of period	6 years 324 days
Aggregate Intrinsic Value
Exercised | $	$ 0
Options outstanding at December 31, 2016 | $	0
Options vested and expected to vest as of December 31, 2016 | $	0
Options vested and exercisable as of December 31, 2016 | $	$ 0