Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$ 21,076	$ 20,414
Trade accounts receivable, net of allowance for doubtful accounts of $314 and $532 at December 31, 2014 and March 31, 2014, respectively	11,008	12,349
Costs and estimated earnings in excess of billings on uncompleted contracts	5,153	5,813
Inventories	2,773	2,546
Deferred income taxes	1,429	1,429
Prepaid expenses and other current assets	1,610	1,275
Total current assets	43,049	43,826
Property and equipment, net	2,013	1,546
Deferred income taxes	6,596	6,112
Intangible assets, net	1,120	1,584
Goodwill	17,318	17,318
Other assets	213	221
Total assets	70,309	70,607
Current liabilities:
Trade accounts payable	5,379	5,913
Accrued payroll and related expenses	3,787	3,971
Accrued liabilities	1,105	1,643
Billings in excess of costs and estimated earnings on uncompleted contracts	2,065	1,391
Total current liabilities	12,336	12,918
Deferred rent	929
Unrecognized tax benefits	177	199
Total liabilities	13,442	13,117
Commitments and contingencies
Stockholders' equity:
Preferred stock, $1.00 par value: Authorized shares - 2,000 Issued and outstanding shares - none
Common stock, $0.10 par value: Authorized shares - 70,000 at December 31, 2014 and March 31, 2014, Issued and outstanding shares - 32,554 at December 31, 2014 and 32,788 at March 31, 2014	3,256	3,280
Additional paid-in capital	135,691	135,986
Accumulated deficit	(82,080)	(81,776)
Total stockholders' equity	56,867	57,490
Total liabilities and stockholders' equity	$ 70,309	$ 70,607