Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	May 31, 2012	Feb. 29, 2012
Consolidated Condensed Balance Sheets
Receivables - principally trade, allowances (in dollars)	$ 5,153	$ 5,541
Property and equipment, accumulated depreciation (in dollars)	67,498	62,550
Other intangible assets, accumulated amortization (in dollars)	57,800	52,268
Other assets, accumulated amortization (in dollars)	$ 4,377	$ 3,938
Cumulative preferred stock, non-voting, par (in dollars per share)	$ 1.00	$ 1.00
Cumulative preferred stock, non-voting, Authorized shares	2,000,000	2,000,000
Cumulative preferred stock, non-voting, issued shares	0	0
Common stock, par (in dollars per share)	$ 0.10	$ 0.10
Common stock, Authorized shares	50,000,000	50,000,000
Common stock, shares issued	31,732,256	31,681,067
Common stock, shares outstanding	31,732,256	31,681,067