Income Taxes (Details 4) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Reconciliation of the beginning and ending liabilities for unrecognized tax benefits
Balance at beginning of period	$ 425	$ 507
Gross increases in current period tax positions	100	62
Gross increases in prior period tax positions	0	19
Gross decreases in prior period tax positions	0	(163)
Reductions in tax positions due to lapse of statutory limitations	(12)	0
Settlements with taxing authorities	(243)	0
Balance at end of period	270	425
Accrued interest and penalties at end of period	31	139
Total liability for unrecognized tax benefits	$ 301	$ 564