Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income	$ 2,323	$ 2,154
Adjustments to reconcile net income to net cash provided by operating activities:
Change in deferred tax assets	1,004	231
Depreciation of property and equipment	692	716
Stock-based compensation	220	237
Amortization of intangible assets	483	348
Change in fair value of contingent consideration	(188)	(639)
Gain on sale of discontinued operation, net of tax	(1,478)	(1,244)
Loss on disposal of property and equipment		1
Changes in operating assets and liabilities, net of effects of discontinued operation:
Accounts receivable	2,623	(355)
Net costs and estimated earnings in excess of billings	(1,283)	(694)
Inventories	(453)	624
Prepaid expenses and other assets	(516)	86
Accounts payable and accrued expenses	(1,118)	379
Net cash provided by operating activities	2,309	1,844
Cash flows from investing activities
Purchases of property and equipment	(478)	(295)
Capitalized software	(158)
Cash paid for business combination		(977)
Net proceeds from sale of business segment	1,091	11,446
Net cash provided by investing activities	455	10,174
Cash flows from financing activities
Payments on long-term debt	(634)	(1,872)
Deferred payment for prior business combination		(112)
Repurchases of common stock	(1,333)	(396)
Proceeds from stock option exercises	216	63
Net cash used in financing activities	(1,751)	(2,317)
Increase in cash and cash equivalents	1,013	9,701
Cash and cash equivalents at beginning of period	18,701	11,818
Cash and cash equivalents at end of period	19,714	21,519
Supplemental schedule of non-cash investing and financing activities:
Liabilities incurred for acquisition		$ 971