Note 1. Summary of Significant Accounting Policies (Details) (USD $)					3 Months Ended		3 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013 Chairman, Lewis C. Pell [Member]	Jun. 30, 2013 Stryker [Member] Sales Revenue, Goods, Net [Member]	Jun. 30, 2013 Convertible Debt [Member]
Note 1. Summary of Significant Accounting Policies (Details) [Line Items]
Cash and Cash Equivalents, at Carrying Value (in Dollars)	$ 1,332,000	$ 788,000	$ 1,144,000	$ 2,674,000
Investment Repurchase Agreement, Amount to be Received (in Dollars)					$ 5,000,000		$ 1,000,000
Percentage of Total Segment Net Sales and Total Accounts Receivable, Net						10.00%