SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash (paid) received:
Interest	$ (794)	$ (948)
Income tax payments	(1,921)	(1,088)
Refund of income taxes	$ 12	$ 52
Dividends declared per common share (in usd per share)	$ 0.12	$ 0.12
Non-cash activities:
Repurchase of common stock from employees in exchange for the payment of income taxes	$ 278	$ 173
Purchase of equipment on capital leases	0	881
Issuance of treasury stock for the Company's investment savings 401(k) plan	$ 401	$ 271