CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 9,831	$ 19,111
Restricted cash	9	960
Contract receivables, net	19,238	13,997
Prepaid expenses and other current assets	1,624	2,795
Total current assets	30,702	36,863
Equipment, software, and leasehold improvements	5,290	4,782
Accumulated depreciation	(4,125)	(3,719)
Equipment, software, and leasehold improvements, net	1,165	1,063
Software development costs, net	662	690
Goodwill	12,185	8,431
Intangible assets, net	6,597	2,604
Deferred tax assets	6,203	6,494
Other assets	37	37
Total assets	57,551	56,182
Current liabilities:
Current portion of long-term debt, net of debt issuance costs and original issue discount	1,901	0
Accounts payable	1,096	1,251
Accrued expenses	2,324	2,276
Accrued compensation	3,532	2,866
Billings in excess of revenue earned	7,810	14,543
Accrued warranty	1,105	1,433
Contingent consideration	0	1,701
Other current liabilities	1,035	1,182
Total current liabilities	18,803	25,252
Long-term debt, less current portion, net of debt issuance costs and original issue discount	7,089	0
Other liabilities	1,545	1,258
Total liabilities	27,437	26,510
Commitments and contingencies
Stockholders' equity:
Preferred stock $0.01 par value, 2,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock $0.01 par value; 60,000,000 shares authorized, 21,432,014 shares issued, 19,833,103 shares outstanding as of September 30, 2018; 30,000,000 shares authorized, 21,024,395 shares issued, 19,425,484 shares outstanding as of December 31, 2017	214	210
Additional paid-in capital	77,876	76,802
Accumulated deficit	(43,248)	(42,870)
Accumulated other comprehensive loss	(1,729)	(1,471)
Treasury stock at cost, 1,598,911 shares in 2018 and 2017	(2,999)	(2,999)
Total stockholders' equity	30,114	29,672
Total liabilities and stockholders' equity	$ 57,551	$ 56,182