Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities
Net (loss) income	$ (1,070)	$ 1,409	$ 2,379
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(749)us-gaap_DeferredIncomeTaxExpenseBenefit	710us-gaap_DeferredIncomeTaxExpenseBenefit	1,414us-gaap_DeferredIncomeTaxExpenseBenefit
Depreciation of property and equipment	525us-gaap_Depreciation	768us-gaap_Depreciation	901us-gaap_Depreciation
Stock-based compensation	398us-gaap_ShareBasedCompensation	300us-gaap_ShareBasedCompensation	279us-gaap_ShareBasedCompensation
Amortization of intangible assets	597us-gaap_AmortizationOfIntangibleAssets	733us-gaap_AmortizationOfIntangibleAssets	644us-gaap_AmortizationOfIntangibleAssets
Change in fair value of contingent consideration	9	25	(181)
Gain on sale of discontinued operation, net of tax	(207)	(89)	(1,465)
Loss on disposal of equipment	17
Loss on impairment of intangible asset		108
Changes in operating assets and liabilities, net of effects of discontinued operation:
Accounts receivable	1,143	(1,403)	135
Net costs and estimated earnings in excess of billings	1,705	(34)	(570)
Inventories	(516)us-gaap_IncreaseDecreaseInInventories	(81)us-gaap_IncreaseDecreaseInInventories	(11)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	9	140	(793)
Accounts payable and accrued expenses	1,716	688	461
Net cash provided by operating activities	3,577	3,274	3,193
Cash flows from investing activities
Purchases of property and equipment	(986)	(452)	(815)
Capitalized software		(301)us-gaap_PaymentsToAcquireSoftware	(190)us-gaap_PaymentsToAcquireSoftware
Net proceeds from sale of business segment	142	(26)	1,372
Net cash (used in) provided by investing activities	(844)	(779)	367
Cash flows from financing activities
Payments on long-term debt			(634)us-gaap_RepaymentsOfLongTermDebt
Deferred payment for prior business combination	(336)	(659)	(700)
Repurchases of common stock	(863)	(339)	(2,477)
Proceeds from stock option exercises	33	270	252
Issuance of common stock pursuant to restricted stock units	(20)	(31)	(24)
Net cash used in financing activities	(1,186)	(759)	(3,583)
Increase (decrease) in cash and cash equivalents	1,547	1,736	(23)
Cash and cash equivalents at beginning of period	20,414	18,678	18,701
Cash and cash equivalents at end of period	21,961	20,414	18,678
Supplemental cash flow information:
Interest	30us-gaap_InterestPaid	33us-gaap_InterestPaid	45us-gaap_InterestPaid
Income taxes	141us-gaap_IncomeTaxesPaidNet	128us-gaap_IncomeTaxesPaidNet	339us-gaap_IncomeTaxesPaidNet
Supplemental cash flow information:
Issuance of common stock for vested restricted stock units	7	6	5
Landlord contribution for tenant improvements	$ 328us-gaap_PaymentsForTenantImprovements

The outflow of cash made in a business combination related to a second deferred payment provision.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

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- Definition

Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30, 31

-Article 5

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