Consolidated Condensed Statement of Changes In Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Stockholders' Equity, Total	Noncontrolling Interest
Beginning Balance at Dec. 31, 2012	$ 215,163	$ 166,309	$ 24,120	$ (17,383)	$ (11,231)	$ 161,815	$ 53,348
Beginning Balance (in shares) at Dec. 31, 2012		29,818,000
Exercise of Common Stock options for cash (in shares)		201,000
Exercise of Common Stock options for cash	1,487	2,100	(613)			1,487
Stock issued upon conversion of preferred stock (in shares)		105,000
Stock issued upon conversion of preferred stock	1,655	1,655				1,655
Stock option compensation	222		222			222
Common Stock issued to Board of Directors and employees (in shares)		2,000
Common Stock issued to Board of Directors and employees	269	269				269
Convertible preferred stock dividends	(923)			(923)		(923)
Acquisition of non-controlling interest (in shares)		3,300,000
Acquisition of non-controlling interest	(40,302)	42,534	(30,895)			11,639	(51,941)
Currency hedge	39				39	39
Currency translation	(7,271)				(7,271)	(7,271)
Net income	9,909			8,651		8,651	1,258
Ending Balance at Mar. 31, 2013	$ 180,248	$ 212,867	$ (7,166)	$ (9,655)	$ (18,463)	$ 177,583	$ 2,665
Ending Balance (in shares) at Mar. 31, 2013		33,426,000