Note 10 - Fair Value Measurements (Detail) - Fair Value Measuements, Valuation Assumptions (USD $)			0 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended
	Dec. 31, 2012	Mar. 31, 2012	Sep. 10, 2010 Warrant Issued 09-10-2010 [Member]	Dec. 31, 2012 Warrant Issued 09-10-2010 [Member]	Mar. 31, 2012 Warrant Issued 09-10-2010 [Member]	Sep. 10, 2010 Warrant Issued 09-10-2010 #2 [Member]	Dec. 31, 2012 Warrant Issued 09-10-2010 #2 [Member]	Mar. 31, 2012 Warrant Issued 09-10-2010 #2 [Member]	Jul. 26, 2012 Warrant Issued 07-26-2010 [Member]	Dec. 31, 2012 Warrant Issued 07-26-2010 [Member]	Jul. 26, 2012 Warrant Issued 07-26-2012 #2 [Member]	Dec. 31, 2012 Warrant Issued 07-26-2012 #2 [Member]	Nov. 20, 2012 Warrant Issued 11-20-2012 [Member]	Dec. 31, 2012 Warrant Issued 11-20-2012 [Member]
Expiration Date			Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2019
Number of Warrants (in Shares)			136,920	136,920	136,920	10,416	10,416	10,416	50,000	50,000	20,000	20,000	20,000	20,000
Exercise Price (in Dollars per share)			$ 6.70	$ 6.70	$ 6.70	$ 6.70	$ 6.70	$ 6.70	$ 3.35	$ 3.35	$ 3.35	$ 3.35	$ 3.56	$ 3.56
Fair Value Per Share (in Dollars per share)	$ 3.35		$ 6.70	$ 3.65	$ 6.33	$ 6.70	$ 3.65	$ 6.33	$ 3.90	$ 3.65	$ 3.90	$ 3.65	$ 3.50	$ 3.65
Expected Volatality			28.51%	42.07%	53.19%	28.51%	42.07%	53.19%	42.04%	42.07%	42.04%	42.07%	42.45%	42.07%
Remaining Life in Years			9	6.70	7.45	5	2.70	3.45	7	6.58	7	6.58	6.83	6.75
Risk Free Interest Rate			2.81%	1.18%	2.23%	1.59%	0.36%	2.23%	0.94%	1.18%	0.94%	1.18%	1.09%	1.18%
Warrant Liability (in Dollars)	$ 200,634	$ 355,290	$ 267,848	$ 93,222	$ 338,116	$ 13,808	$ 2,572	$ 17,174	$ 66,193	$ 58,612	$ 26,477	$ 23,444	$ 21,441	$ 22,784