Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities
Net (loss) income	$ (19)	$ 460
Changes in operating assets and liabilities, net of effects of discontinued operation:
Deferred income taxes	11	233
Depreciation of property and equipment	127	211
Stock-based compensation	99	68
Amortization of intangible assets	160	161
Change in fair value of contingent consideration	4	7
Gain on sale of discontinued operation, net of tax	(49)	(30)
Changes in operating assets and liabilities:
Accounts receivable	(89)	(1,511)
Net costs and estimated earnings in excess of billings	954	1,871
Inventories	601	392
Prepaid expenses and other assets	(239)	(379)
Accounts payable and accrued expenses	(70)	(1,463)
Net cash provided by operating activities	1,490	20
Cash flows from investing activities
Purchases of property and equipment	(115)	(145)
Capitalized software		(104)
Net proceeds from sale of business segment	98
Net cash (used in) investing activities	(17)	(249)
Cash flows from financing activities
Repurchases of common stock	(350)	(302)
Proceeds from stock option exercises		27
Net cash used in financing activities	(350)	(275)
Increase (decrease) in cash and cash equivalents	1,123	(504)
Cash and cash equivalents at beginning of period	20,414	19,137
Cash and cash equivalents at end of period	$ 21,537	$ 18,633