Income Taxes - Income Tax Expense (Benefit) Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Tax expense at the federal statutory rate	$ 1,280	$ 1,415	$ 6,424	$ 996
State income tax expense (net of federal benefit)	128	142	642	100
Tax effect of timber at the federal statutory rate of 23.8%	(121)	0	(381)	0
Decrease in valuation allowance	(350)	(87)	(713)	(245)
Fees and expenses for the SEC investigation	0	(256)	0	1,092
Other	11	30	(802)	91
Total income tax expense	$ 948	$ 1,244	$ 5,170	$ 2,034
Timber statutory federal rate			23.80%