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v2.4.1.9

Note 14 - Employee Benefit Plan (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Disclosure Text Block Supplement [Abstract] |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 5.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount | $ 350,049 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | $ 362,150 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | $ 326,007 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount

X
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisclosureTextBlockSupplementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration