SUPPLEMENTAL CASH FLOW INFORMATION (Supplemental Disclosure of Cash Flow information) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash (paid) received:
Interest	$ (441)	$ (585)
Income tax payments	(863)	(807)
Refund of income taxes	13	0
Dividends declared per common share	$ 0.03	$ 0.03
Non-cash activities:
Repurchases of common stock from employees in exchange for the payment of income taxes and option exercises	28	93
Issuance of treasury stock for the Company's investment savings plan	109	212
Common stock issued to a former director in exchange for vested director units	$ 0	$ 135