Consolidated Balance Sheets (Parentheticals) (USD $)	Jun. 30, 2013	Mar. 31, 2013
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued
Common stock, par value (in dollars per share)
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	12,176,029	12,154,069
Common stock, shares outstanding	12,176,029	12,154,069