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	$ 2,618	$ 2,270
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,546	4,027
Deferred income taxes	1,473	1,264
Amortization of debt issue costs	183	191
Amortization of syndication contracts	109	89
Payments on syndication contracts	(113)	(94)
Non-cash stock-based compensation	975	946
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	10,979	5,800
(Increase) decrease in prepaid expenses and other assets	(891)	(378)
Increase (decrease) in accounts payable, accrued expenses and other liabilities	(5,963)	(3,594)
Net cash provided by operating activities	12,916	10,521
Cash flows from investing activities:
Purchases of short-term investments		(30,000)
Purchases of investments	(250)
Purchases of property and equipment and intangibles	(1,526)	(2,135)
Deposits on acquisitions	(230)
Net cash used in investing activities	(2,006)	(32,135)
Cash flows from financing activities:
Proceeds from stock option exercises	311	400
Payments on long-term debt	(938)	(938)
Dividends paid	(2,821)	(2,781)
Net cash used in financing activities	(3,448)	(3,319)
Net increase (decrease) in cash and cash equivalents	7,462	(24,933)
Cash and cash equivalents:
Beginning	61,520	47,924
Ending	68,982	22,991
Cash payments for:
Interest	3,462	3,675
Income taxes	426	250
Supplemental disclosures of non-cash investing and financing activities:
Capital expenditures financed through accounts payable, accrued expenses and other liabilities	$ 786	$ 917