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Description of business and summary of significant accounting policies (Policies) | 12 Months Ended
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Jun. 30, 2011
Estimates | Estimates: The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. These estimates include the valuation of accounts receivable, available-for-sale investments, inventory, intangible assets, stock based compensation and income taxes. Actual results could differ from these estimates.
Principles of consolidation | Principles of consolidation: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated.
Translation of foreign financial statements | Translation of foreign financial statements: Assets and liabilities of the Company’s foreign operations are translated at year-end rates of exchange and the resulting gains and losses arising from the translation of net assets located outside the U.S. are recorded as a cumulative translation adjustment, a component of accumulated other comprehensive income (loss) on the consolidated balance sheets. Foreign statements of earnings are translated at the average rate of exchange for the year. Foreign currency transaction gains and losses are included in other non-operating expense in the consolidated statements of earnings.
Revenue recognition | Revenue recognition: The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable and collectability is reasonably assured. Payment terms for shipments to end-users are generally net 30 days. Payment terms for distributor shipments may range from 30 to 90 days. Products are shipped FOB shipping point. Freight charges billed to end-users are included in net sales and freight costs are included in cost of sales. Freight charges on shipments to distributors are paid directly by the distributor. Any claims for credit or return of goods must be made within 10 days of receipt. Revenues are reduced to reflect estimated credits and returns. Sales, use, value-added and other excise taxes are not included in revenue.
Research and development | Research and development: Research and development expenditures are expensed as incurred. Development activities generally relate to creating new products, improving or creating variations of existing products, or modifying existing products to meet new applications.
Advertising costs | Advertising costs: Advertising expenses (including production and communication costs) were $2.9 million, $3.0 million and $3.0 million for fiscal 2011, 2010 and 2009. The Company expenses advertising expenses as incurred.
Share-based compensation | Share-based compensation: The cost of employee services received in exchange for the award of equity instruments is based on the fair value of the award at the date of grant. Separate groups of employees that have similar historical exercise behavior with regard to option exercise timing and forfeiture rates are considered separately in determining option fair value. Compensation cost is recognized using a straight-line method over the vesting period and is net of estimated forfeitures. Stock option exercises are satisfied through the issuance of new shares.
Income taxes | Income taxes: The Company uses the asset and liability method of accounting for income taxes. Deferred tax assets and liabilities are recognized to record the income tax effect of temporary differences between the tax basis and financial reporting basis of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. Tax positions taken or expected to be taken in a tax return are recognized in the financial statements when it is more likely than not that the position would be sustained upon examination by tax authorities. A recognized tax position is then measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. The Company recognizes interest and penalties related to unrecognized tax benefits in income tax expense.
Financial instruments not measured at fair value | Financial instruments not measured at fair value: Certain of the Company’s financial instruments are not measured at fair value but nevertheless are recorded at carrying amounts approximating fair value, based on their short-term nature. These financial instruments include cash and cash equivalents, accounts receivable, accounts payable and other current liabilities.
Cash and equivalents | Cash and equivalents: Cash and cash equivalents include cash on hand and highly-liquid investments with original maturities of three months or less.
Available-for-sale investments | Available-for-sale investments: Available-for-sale investments consist mainly of debt instruments with original maturities of generally three months to three years and are recorded based on trade-date. The Company considers all of its marketable securities available-for-sale and reports them at fair market value. Fair market values are based on quoted market prices in active markets for identical assets and liabilities (Level 1 inputs). Unrealized gains and losses on available-for-sale securities are excluded from income, but are included in other comprehensive income. If an “other-than-temporary” impairment is determined to exist, the difference between the value of the investment security recorded in the financial statements and the Company’s current estimate of the fair value is recognized as a charge to earnings in the period in which the impairment is determined.
Inventories | Inventories: Inventories are stated at the lower of cost (first-in, first-out method) or market. The Company regularly reviews inventory on hand for slow-moving and obsolete inventory, inventory not meeting quality control standards and inventory subject to expiration. To meet strict customer quality standards, the Company has established a highly controlled manufacturing process for proteins and antibodies. New protein and antibody products require the initial manufacture of multiple batches to determine if quality standards can be consistently met. In addition, the Company will produce larger batches of established products than current sales requirements due to economies of scale. The manufacturing process for proteins and antibodies, therefore, has and will continue to produce quantities in excess of forecasted usage. The Company values its manufactured protein and antibody inventory based on a two-year usage forecast. Protein and antibody quantities in excess of the two-year usage forecast are not valued due to uncertainty over salability. Sales of previously unvalued protein and antibody inventory for fiscal years 2011, 2010 and 2009 were not material. Manufacturing costs for proteins and antibodies charged directly to cost of sales were $13.7 million, $12.3 million and $11.9 million for fiscal 2011, 2010 and 2009 respectively.
Depreciation and amortization | Depreciation and amortization: Equipment is depreciated using the straight-line method over an estimated useful life of five years. Buildings, building improvements and leasehold improvements are amortized over estimated useful lives of 5 to 40 years.
Goodwill | Goodwill: At June 30, 2011 and 2010, the Company had recorded goodwill of $86.6 million and $25.1 million, respectively. The increase from fiscal 2010 was the result of goodwill related to acquisitions in fiscal 2011 which are described in Note B. The Company tests goodwill at least annually for impairment. All of the goodwill recorded is within the Company’s biotechnology segment. The Company’s annual assessment included comparison of the carrying amount of each reporting unit, including goodwill, to the fair value of the reporting unit. The Company completed its annual impairment testing of goodwill and concluded that no impairment existed as of June 30, 2011, as the fair values of the Company’s reporting units substantially exceeded their carrying values, with the exception of the Tocris and Boston Biochem reporting units which were acquired in the fourth quarter of fiscal 2011. The carrying values of Tocris and Boston Biochem approximate fair values at June 30, 2011.
Impairment of intangible and other long-lived assets | Impairment of intangible and other long-lived assets: Intangible assets are being amortized over their estimated useful lives. The Company reviews the carrying amount of intangible and other long-lived assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of asset groups subject to impairment analysis requires the Company to make assumptions and judgments regarding the fair value of these asset groups. Asset groups are considered to be impaired if their carrying amount exceeds the groups’ ability to continue to generate income from operations and positive cash flow in future periods. If asset groups are considered impaired, the amount by which the carrying amount exceeds its fair value would be expensed as an impairment loss. As of June 30, 2011, the Company has determined that no impairment exists.
Investments in unconsolidated entities | Investments in unconsolidated entities: The Company has equity investments in several start-up and early development stage companies, among them ChemoCentryx, Inc, (CCX), Hemerus Medical, LLC (Hemerus), Nephromics, LLC (Nephromics) and ACTGen, Inc. (ACTGen). The accounting treatment of each investment (cost method or equity method) is dependent upon a number of factors, including, but not limited to, the Company’s share in the equity of the investee and the Company’s ability to exercise significant influence over the operating and financial policies of the investee.
Unremitted Earnings in Foreign Investment, Policy | Deferred taxes have not been provided on such undistributed earnings, as the Company has either paid U.S. taxes on the undistributed earnings or intends to indefinitely reinvest the undistributed earnings in the foreign operations.

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- Definition Disclosure of accounting policy for advertising costs. For those costs that cannot be capitalized, discloses whether such costs are expensed as incurred or the first period in which the advertising takes place. For direct response advertising costs that are capitalized, describes those assets and the accounting policy used, including a description of the qualifying activity, the types of costs capitalized and the related amortization period. An entity also may disclose its accounting policy for cooperative advertising arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6387522&loc=d3e8384-108330 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6387501&loc=d3e8275-108329 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-7 -Paragraph 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2127066 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 02-16 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 + Details
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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Technical Practice Aid (TPA) -Number 2110 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2122427 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4273-108586 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Financial Reporting Release (FRR) -Number 203 -Paragraph 02-03 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. 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- Definition Disclosure of accounting policy for the equity method of accounting for investments in common stock or other interests including unconsolidated subsidiaries, corporate joint ventures, noncontrolling interests in real estate ventures, limited partnerships, and limited liability companies. The accounting policy may include information such as: (1) initially recording an investment in the stock of an investee at cost; (2) adjusting the carrying amount of the investment to recognize the investor's share of the earnings or losses of the investee after the date of acquisition; and (3) adjustments to reflect the investor's share of changes in the investee's capital (dividends). This disclosure may also include a detailed description of the policy for determining the amount of equity method losses recognized after an investment has been reduced to zero as a result of previous losses, reasons for not using the equity method when the investor company owns 20 percent or more of the voting stock of the investee's company (including identification of the significant investee), reasons for using the equity method when the ownership percentage is less than 20 percent, and discussion of recognition of equity method losses when an investor's total investment in an investee includes, in addition to an investment in common stock, other investments such as preferred stock and loans to the investee. 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