CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Balances at Mar. 31, 2010	$ 35,312	$ 2,793	$ 132,543	$ 2,246	$ (102,270)
Balances (in shares) at Mar. 31, 2010		27,927,114
Increase (Decrease) in Stockholders' Equity
Stock option and purchase plan issuances	462	17	445
Stock option and purchase plan issuances (in shares)		174,877
Stock-based compensation	1,007		1,007
Net loss	(2,979)				(2,979)
Foreign currency translation adjustments	66			66
Balances at Mar. 31, 2011	33,868	2,810	133,995	2,312	(105,249)
Balances (in shares) at Mar. 31, 2011		28,101,991
Increase (Decrease) in Stockholders' Equity
Stock option and purchase plan issuances	171	8	163
Stock option and purchase plan issuances (in shares)		81,478
Stock-based compensation	1,280		1,280
Net loss	(3,547)				(3,547)
Foreign currency translation adjustments	(8)			(8)
Balances at Mar. 31, 2012	31,764	2,818	135,438	2,304	(108,796)
Balances (in shares) at Mar. 31, 2012	28,183,469	28,183,469
Increase (Decrease) in Stockholders' Equity
Stock option and purchase plan issuances	71	5	66
Stock option and purchase plan issuances (in shares)		51,450
Common stock issued and issuable for acquired business	4,146	170	3,976
Common stock issued and issuable for acquired business (in shares)		1,696,329
Stock options assumed for acquired business	949		949
Stock-based compensation	1,049		1,049
Net loss	(2,942)				(2,942)
Foreign currency translation adjustments	(47)			(47)
Balances at Mar. 31, 2013	$ 34,990	$ 2,993	$ 141,478	$ 2,257	$ (111,738)
Balances (in shares) at Mar. 31, 2013	29,931,248	29,931,248