CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Common Stock	Additional Paid-In Capital	Accumulated other Comprehensive Income (Loss)	Accumulated Deficit	Total
Beginning balance, amount at Mar. 31, 2009	$ 63	$ 211,686	$ 0	$ (202,719)	$ 9,030
Beginning balance, shares at Mar. 31, 2009	62,686,039
Issuance of common stock under stock plans	0	399	0	0	399
Issuance of common stock under stock plans, shares	768,873
Repurchase of common stock	0	(212)	0	0	(212)
Repurchase of common stock, shares	(282,376)
Stock compensation charge	0	204	0	0	204
Net income	0	0	0	3,879
Total comprehensive income	0	0	0	0	3,879
Ending balance, amount at Mar. 31, 2010	63	212,077	0	(198,840)	13,300
Ending balance, shares at Mar. 31, 2010	63,172,536
Issuance of common stock under stock plans	2	2,272	0	0	2,274
Issuance of common stock under stock plans, shares	1,869,546
Issuance of common stock on exercise of warrant	0	880	0	0	880
Issuance of common stock on exercise of warrant, shares	293,281
Issuance of common stock for acquisition of Central Host, Inc.	0	600	0	0	600
Issuance of common stock for acquisition of Central Host, Inc., shares	432,276
Issuance of restricted common stock	0	278	0	0	278
Issuance of restricted common stock, shares	200,000
Repurchase of common stock	(3)	(7,808)	0	0	(7,811)
Repurchase of common stock, shares	(3,588,609)
Buyback of employee stock options	0	(539)	0	0	(539)
Stock compensation charge	0	458	0	0	458
Unrealized investment gain (loss)	0	0	(73)	0
Net income				6,494
Total comprehensive income					6,421
Ending balance, amount at Mar. 31, 2011	62	208,218	(73)	(192,346)	15,861
Ending balance, shares at Mar. 31, 2011	62,379,030
Issuance of common stock under stock plans	2	3,050	0	0	3,052
Issuance of common stock under stock plans, shares	2,261,724
Issuance of common stock for acquisition of businesses, net of issuance costs	7	31,565	0	0	31,572
Issuance of common stock for acquisition of businesses, net of issuance costs, shares	6,692,569
Repurchase of common stock	0	(2,400)	0	0	(2,400)
Repurchase of common stock, shares	(653,830)
Buyback of employee stock options and stock purchase rights	0	(384)	0	0	(384)
Stock compensation charge	0	1,506	0	0	1,506
Unrealized investment gain (loss)	0	0	15	0
Net income				69,228
Total comprehensive income					69,243
Ending balance, amount at Mar. 31, 2012	$ 71	$ 241,555	$ (58)	$ (123,118)	$ 118,450
Ending balance, shares at Mar. 31, 2012	70,679,493