Note 2 - Earnings Per Common Share (Details) (USD $)	3 Months Ended								12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2015	Mar. 31, 2014
Net income	$ (856,000)	$ 1,448,000	$ 1,818,000	$ 73,000	$ 417,000	$ 455,000	$ 456,000	$ 139,000	$ 2,483,926	$ 1,466,636
Earnings Per Share:
Basic (in dollars per share)	$ (0.36)	$ 0.61	$ 0.77	$ 0.03	$ 0.17	$ 0.19	$ 0.19	$ 0.06	$ 1.05	$ 0.61
Diluted (in dollars per share)	$ (0.36)	$ 0.61	$ 0.77	$ 0.03	$ 0.17	$ 0.19	$ 0.18	$ 0.06	$ 1.04	$ 0.60
Weighted Average Shares Outstanding:
Basic (in shares)									2,359,610	2,414,184
Diluted (in shares)									2,379,928	2,433,058