Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - Scenario, Unspecified [Domain] - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	12,346,474	12,278,439
Common stock, shares outstanding (in shares)	12,013,464	11,945,430
Treasury stock, shares (in shares)	333,010	333,010