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	2,615	3,603	(988)			2,615
Exercise of Common Stock options for cash (in shares)		388,000
Stock issued upon conversion of preferred stock	8,276	8,276				8,276
Stock issued upon conversion of preferred stock (in shares)		523,000
Stock option compensation	624		624			624
Common Stock issued to Board of Directors and employees	374	374				374
Common Stock issued to Board of Directors and employees (in shares)		24,000
Convertible preferred stock dividends	(1,463)			(1,463)		(1,463)
Acquisition of non-controlling interest	(42,347)	42,517	(31,377)			11,140	(53,487)
Acquisition of non-controlling interest (in shares)		3,300,000
Currency hedge	75				75	75
Currency translation	(6,903)				(6,903)	(6,903)
Net income	15,437			14,160		14,160	1,277
Ending Balance at Jun. 30, 2013	$ 191,851	$ 221,079	$ (7,621)	$ (4,686)	$ (18,059)	$ 190,713	$ 1,138
Ending Balance (in shares) at Jun. 30, 2013		34,053,000