Stock-Based Compensation - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		12 Months Ended	3 Months Ended			12 Months Ended					3 Months Ended			12 Months Ended			3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013	Jun. 30, 2013 Stock Options [Member]	Jun. 30, 2012 Stock Options [Member]	Jun. 30, 2013 Restricted Stock [Member]	Mar. 31, 2013 Restricted Stock [Member]	Mar. 31, 2012 Restricted Stock [Member]	Mar. 31, 2013 2013 $3.05 Value Per Option [Member]	Mar. 31, 2013 2013 $3.02 Value Per Option [Member]	Mar. 31, 2013 2013 $3.02 Value Per Option [Member]	Jun. 30, 2013 2013 $2.82 Value Per Option [Member]	Jun. 30, 2013 2014 $3.03 Value Per Option [Member]	Jun. 30, 2013 2014 $3.01 Value Per Option [Member]	Mar. 31, 2013 2013 $1.86 Value Per Option [Member]	Mar. 31, 2013 2013 $1.75 Value Per Option [Member]	Mar. 31, 2013 2013 $1.75 Value Per Option [Member]	Jun. 30, 2013 2014 $2.13 value per option [Member]	Jun. 30, 2013 2014 $1.92 Value Per Option [Member]	Jun. 30, 2013 2012 Plan [Member]	Jun. 30, 2013 2006 Plan [Member]	Jun. 30, 2013 2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, net of tax	$ 109	$ 147
Stock-based compensation expense, net of tax, per diluted share	$ 0.01	$ 0.02
Shares of common stock granted	428,477																			750,000	500,000	200,000
Expiration period	10 years							3 years
Options valued by Black Scholes pricing model	19,000		77,000
Number of Shares, Granted	158,000		551,000
Weighted-average value per option granted									$ 3.05	$ 3.02	$ 3.02	$ 2.82	$ 3.03	$ 3.01
Options valued by Monte Carlo simulation model	139,000		474,000
Weighted-average value per option	$ 8.58														$ 1.86	$ 1.75	$ 1.75	$ 2.13	$ 1.92
Cash received from stock option exercises	334
Aggregate intrinsic value of options exercised	91
Stock option compensation expense				127	203	48	50
Taxes related to stock option compensation expense				48	85	18	21
Unrecognized compensation cost related to stock options granted-but-not-yet-vested that are expected to become exercisable	940
Weighted-average period cost is to be recognized				3 years			2 years
Forfeiture provisions lapse period for non-employee directors	1 year
Transfer restrictions lapse period for non-employee directors	6 months
Unrecognized compensation cost related to non-vested restricted stock awards	$ 140