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Note 12 - Share-based Compensation (Details) - Stock options outstanding (USD $) | 12 Months Ended
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Sep. 30, 2013
Range1 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 0.46
Exercise Prices,Upper Limit | $ 1.00
Number Outstanding (in Shares) | 333,976
Weighted Average Remaining Contractual Life | 109 days
Weighted Average Exercise Price | $ 0.49
Number Exercisable (in Shares) | 329,976
Weighted Average Exercise Price | $ 0.48
Range 2 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 1.01
Exercise Prices,Upper Limit | $ 1.50
Number Outstanding (in Shares) | 906,500
Weighted Average Remaining Contractual Life | 4 years 94 days
Weighted Average Exercise Price | $ 1.27
Number Exercisable (in Shares) | 776,843
Weighted Average Exercise Price | $ 1.26
Range 3 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 1.51
Exercise Prices,Upper Limit | $ 2.00
Number Outstanding (in Shares) | 12,500
Weighted Average Remaining Contractual Life | 6 years 321 days
Weighted Average Exercise Price | $ 1.57
Number Exercisable (in Shares) | 6,156
Weighted Average Exercise Price | $ 1.63
Range 4 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 2.01
Exercise Prices,Upper Limit | $ 2.50
Number Outstanding (in Shares) | 276,000
Weighted Average Remaining Contractual Life | 7 years 80 days
Weighted Average Exercise Price | $ 2.26
Number Exercisable (in Shares) | 274,125
Weighted Average Exercise Price | $ 2.26
Range 5 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 2.51
Exercise Prices,Upper Limit | $ 3.13
Number Outstanding (in Shares) | 865,500
Weighted Average Remaining Contractual Life | 7 years 284 days
Weighted Average Exercise Price | $ 2.95
Number Exercisable (in Shares) | 672,156
Weighted Average Exercise Price | $ 2.94
Range 6 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise Prices, Lower Limit | $ 0.46
Exercise Prices,Upper Limit | $ 3.13
Number Outstanding (in Shares) | 2,394,476
Weighted Average Remaining Contractual Life | 5 years 124 days
Weighted Average Exercise Price | $ 1.89
Number Exercisable (in Shares) | 2,059,256
Weighted Average Exercise Price | $ 1.82

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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