Note 9 - Stock-Based Awards (Details) (USD $)	12 Months Ended			9 Months Ended	1 Months Ended	12 Months Ended		28 Months Ended	30 Months Ended	12 Months Ended								0 Months Ended		12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013 Annual Vesting [Member] Howard Zauberman [Member]	Nov. 26, 2013 Restricted Stock [Member] Howard Zauberman [Member]	Mar. 31, 2014 Restricted Stock [Member]	Mar. 31, 2013 Restricted Stock [Member]	Sep. 30, 2014 Restricted Stock [Member]	Dec. 31, 2014 Employee Stock Option [Member]	Mar. 31, 2014 General and Administrative Expense [Member] Cynthia F. Ansari [Member]	Mar. 31, 2014 General and Administrative Expense [Member]		Mar. 31, 2013 General and Administrative Expense [Member]		Mar. 31, 2014 2000 Stock Incentive Plan [Member]	Mar. 31, 2014 2007 Stock Incentive Plan [Member]	Jul. 25, 2012 2007 Stock Incentive Plan [Member]	Aug. 15, 2003 2003 Director Option Plan [Member]	Mar. 31, 2014 2003 Director Option Plan [Member]	Mar. 31, 2014 Cynthia F. Ansari [Member]	Mar. 31, 2014 Katherine L. Wolf [Member]
Note 9 - Stock-Based Awards (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized															4,500,000	7,000,000	5,000,000		450,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	1,096,500		1,019,750															10,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross																		10,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent	100.00%
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period	2,499,234	[1]	1,158,922																	1,125,000	612,458
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	1,415,603
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	5 years 109 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term	5 years 328 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 0.68		$ 0.90
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value (in Dollars)	$ 319,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value (in Dollars)	202,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value (in Dollars)	308,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value (in Dollars)	0		25,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period					1,200,000	1,365,000	40,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period					4 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period				300,000		161,642	174,284
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%
Allocated Share-based Compensation Expense (in Dollars)	694,000		1,469,000							289,000	577,000	[2]	1,329,000	[2]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options (in Dollars)	500,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition								219 days	2 years 6 months
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options (in Dollars)						$ 100,000

[1] Includes cancellation of unvested stock options granted to our former President and Chief Executive Officer, Cynthia F. Ansari (1,125,000 stock options), and our former EVP, Corporate Development and Chief Financial Officer, Katherine L. Wolf (612,458 stock options).

[2] Reflects reversal of stock-based compensation expense of $289 thousand in fiscal 2014 for the cancellation of unvested stock options granted to our former President and Chief Executive Officer, Cynthia F. Ansari.