Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)

v3.8.0.1
Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares
Mar. 31, 2018
Dec. 31, 2017
Series A preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Series A preferred stock, shares authorized (in shares) 50,000 50,000
Series A preferred stock, shares issued (in shares) 0 0
Series A preferred stock, shares outstanding (in shares) 0 0
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 20,000,000 20,000,000
Common stock, shares issued (in shares) 13,607,838 13,600,338
Common stock, shares outstanding (in shares) 13,593,754 13,586,254
Treasury stock, shares (in shares) 14,084 14,084