Income Taxes, Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred Tax Assets [Abstract]
Accrued liabilities	$ 1,710	$ 1,164
Bad debt reserve	497	290
Net operating losses	893	1,051
Deferred compensation	3,851	3,375
Intangibles	3,624	646
Total deferred tax assets	10,575	6,526
Deferred Tax Liabilities [Abstract]
Prepaid expenses	965	1,380
Accounting method change	3,096	0
Goodwill and intangibles	18,172	12,570
Fixed assets	1,195	1,039
Total deferred tax liabilities	23,428	14,989
Net deferred tax liability	$ 12,853	$ 8,463