Shareholders' Equity (Details Textual) - USD ($)		12 Months Ended			54 Months Ended
	Feb. 20, 2015	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2016	Apr. 30, 2012	Nov. 30, 2011	Oct. 31, 2011	Aug. 31, 2010	Feb. 15, 2009
Equity, Class of Treasury Stock [Line Items]
Issuance of common stock for cash, net of issuance costs (shares)	5,462,500.000000
Offering price, per share (USD per share)	$ 3.50
Issuance of common stock for cash, net of issuance costs	$ 17,465,000	$ (2,000)	$ 17,465,000	$ 0
Common stock purchased per right (shares)										1
Right issue share price (USD per share)										$ 30.00
Minimum subscription percentage		20.00%
Number of business days to trigger a distribution date		10 days
Share acquisition percentage		50.00%
Prior to a person becoming an acquiring person, the board of directors of the company's redemption rate (USD per share)										$ 0.001
Employee stock purchase plan, shares authorized (shares)									2,500,000
Maximum amount limit for ESPP per employee		$ 20,000			$ 20,000
Purchase price to market price matching percentage		100.00%			100.00%
Sec 16 Officers limit percentage on ESPP based on annual income		20.00%			20.00%
Sec 16 officers maximum limit on ESPP in amounts		$ 250,000			$ 250,000
Period of interest on loans		10 years
October 2011
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount						$ 7,500,000.0	$ 2,500,000.000000	$ 1,000,000.000000
Treasury stock purchase (shares)					3,022,349.000000
Repurchase of common stock into treasury					$ 6,791,000