CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 11,978	$ 11,997
Preferred shares, authorized shares	1,000,000	1,000,000
Preferred shares, par or stated value per share (in dollars per share)	$ 0	$ 0
Preferred shares, issued shares	0	0
Preferred shares, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized shares	40,000,000	40,000,000
Common stock, issued shares	21,344,741	21,344,741
Common stock, outstanding shares	21,344,741	21,344,741
Preferred Stock Designated as Series A
Preferred shares designated as Series A	48,095	48,095
Preferred shares, par or stated value per share (in dollars per share)	$ 1,050	$ 1,050