Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities
Net income	$ 5,342	$ 2,239
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,552	5,792
Amortization of debt issuance costs	191	153
Share-based compensation	1,427	405
Deferred income taxes	(1,716)	59
Other operating activities		(18)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	758	(1,437)
Income taxes receivable	2,146
Prepaid expenses	181	642
Inventories and other current assets	(720)	(31)
Other assets	(1,003)	(23)
Accounts payable and other accrued expenses	(2,410)	2,645
Accrued taxes, other than income taxes	(280)	13
Other liabilities	233	348
Net cash provided by operating activities	10,701	10,787
Cash flows from investing activities
Purchase of property and equipment	(5,680)	(8,506)
Acquisition of businesses, net of cash acquired		(15,930)
Issuance of notes receivable		(107)
Other investing activities	(75)	(2,059)
Net cash used in investing activities	(5,755)	(26,602)
Cash flows from financing activities
Repayments of Revolving Credit Facility	(3,000)	(40,000)
Borrowings on Revolving Credit Facility		15,000
Repayments of Term Loans	(3,000)	(1,500)
Proceeds from Term Loans		40,000
Repayments of notes payable	(696)	(882)
Proceeds from issuance of common stock	158	890
Payments for debt issuance costs		(416)
Principal payments under capital leases	(136)
Net cash provided by (used in) financing activities	(6,674)	13,092
Cash and cash equivalents
Net decrease for the period	(1,728)	(2,723)
Balance, beginning of period	46,898	69,177
Balance, end of period	45,170	66,454
Supplemental cash flow disclosures
Interest	1,483	1,305
Non-cash investing and financing activities
Notes payable issued for property and equipment		345
Assets acquired under capital lease obligations	$ 1,978
Common stock issued in connection with acquisition		$ 500