Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data [Line Items]
Revenues	$ 14,591,667	$ 17,826,832
Operating loss	(5,091,982)	(3,828,290)
Net loss	(5,093,932)	(4,164,571)
Loss per common share:
Basic (in Dollars per share)	$ (0.57)	$ (0.50)
Diluted (in Dollars per share)	$ (0.57)	$ (0.50)
First Quarter [Member]
Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data [Line Items]
Revenues	3,917,642	4,783,375
Operating loss	(994,962)	(614,836)
Net loss	(993,637)	(383,534)
Loss per common share:
Basic (in Dollars per share)	$ (0.11)	$ (0.05)
Diluted (in Dollars per share)	$ (0.11)	$ (0.05)
Second Quarter [Member]
Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data [Line Items]
Revenues	3,344,175	4,311,675
Operating loss	(1,769,580)	(1,031,959)
Net loss	(1,769,091)	(632,903)
Loss per common share:
Basic (in Dollars per share)	$ (0.20)	$ (0.08)
Diluted (in Dollars per share)	$ (0.20)	$ (0.08)
Third Quarter [Member]
Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data [Line Items]
Revenues	3,810,978	4,504,490
Operating loss	(935,173)	(518,283)
Net loss	(918,176)	(314,379)
Loss per common share:
Basic (in Dollars per share)	$ (0.10)	$ (0.04)
Diluted (in Dollars per share)	$ (0.10)	$ (0.04)
Fourth Quarter [Member]
Note 12 - Quarterly Financial Summary (Unaudited) (Details) - Summarized Unaudited Quarterly Financial Data [Line Items]
Revenues	3,518,872	4,227,292
Operating loss	(1,392,267)	(1,663,212)
Net loss	$ (1,413,028)	$ (2,833,755)
Loss per common share:
Basic (in Dollars per share)	$ (0.16)	$ (0.33)
Diluted (in Dollars per share)	$ (0.16)	$ (0.33)