Note 7. Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended
	Jul. 31, 2012	Mar. 31, 2013	Jan. 31, 2013
Business Acquisition, Purchase Price Allocation, Intangible Assets Other than Goodwill	$ 1,825		$ 342
Payments to Acquire Intangible Assets	1,300
Business Acquisition, Contingent Consideration, at Fair Value	525
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability		$ 183