XML 27 R81.htm IDEA: XBRL DOCUMENT v3.2.0.727

Note 10 - Retirement Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 35,567	$ 43,132	$ 50,500

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