CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Current assets
Cash and cash equivalents	$ 17,185	$ 20,326
Restricted cash	3,241	3,505
Contract receivables, net	22,998	20,356
Prepaid expenses and other current assets	3,668	3,733
Total current assets	47,092	47,920
Equipment and leasehold improvements	5,672	5,206
Accumulated depreciation	(4,335)	(4,105)
Equipment and leasehold improvements, net	1,337	1,101
Software development costs, net	1,884	1,815
Goodwill	4,492	4,462
Intangible assets, net	1,143	1,207
Long-term restricted cash	858	897
Other assets	1,922	1,413
Total assets	58,728	58,815
Current liabilities
Accounts payable	3,854	4,077
Accrued expenses	1,417	1,581
Accrued compensation and payroll taxes	2,206	2,754
Billings in excess of revenue earned	5,470	5,261
Accrued warranty	2,496	2,300
Other current liabilities	1,840	1,707
Total current liabilities	17,283	17,680
Other liabilities	1,789	2,352
Total liabilities	19,072	20,032
Commitments and contingencies
Stockholders' equity
Preferred stock $.01 par value, 2,000,000 shares authorized, shares issued and outstanding none in 2012 and 2011	0	0
Common stock $.01 par value, 30,000,000 shares authorized, shares issued 19,382,400 in 2012 and 19,254,681 in 2011	194	193
Additional paid-in capital	70,596	70,167
Accumulated deficit	(28,533)	(29,063)
Accumulated other comprehensive loss	(649)	(865)
Treasury stock at cost, 986,761 shares in 2012, 824,374 in 2011	(1,952)	(1,649)
Total stockholders' equity	39,656	38,783
Total liabilities and stockholders' equity	$ 58,728	$ 58,815