CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 10,903	$ 11,084
Restricted cash	1,658	1,771
Contract receivables, net	14,538	13,053
Prepaid expenses and other current assets	3,009	2,506
Total current assets	30,108	28,414
Equipment, software and leasehold improvements	6,912	7,003
Accumulated depreciation	5,529	5,407
Equipment, software and leasehold improvements, net	1,383	1,596
Software development costs, net	1,147	1,145
Goodwill	5,612	5,612
Intangible assets, net	611	775
Long-term restricted cash	1,735	1,779
Other assets	88	50
Total assets	40,684	39,371
Current liabilities:
Accounts payable	1,654	1,238
Accrued expenses	1,576	1,723
Accrued compensation	2,720	2,431
Billings in excess of revenue earned	10,093	9,229
Accrued warranty	1,418	1,614
Current contingent consideration	1,297	2,647
Other current liabilities	681	826
Total current liabilities	19,439	19,708
Contingent consideration	1,169	1,085
Other liabilities	776	210
Total liabilities	21,384	21,003
Stockholder's equity:
Preferred stock $.01 par value, 2,000,000 shares authorized, shares issued and outstanding none in 2016 and 2015	0	0
Common stock $.01 par value, 30,000,000 shares authorized, 19,694,530 shares issued and 18,095,619 shares outstanding in 2016, 19,510,770 shares issued and 17,911,859 shares outstanding in 2015	197	195
Additional paid-in capital	74,264	73,481
Accumulated deficit	(50,600)	(50,849)
Accumulated other comprehensive loss	(1,562)	(1,460)
Treasury stock at cost, 1,598,911 shares in 2016 and 2015	2,999	2,999
Total stockholders' equity	19,300	18,368
Total liabilities and stockholders' equity	$ 40,684	$ 39,371