CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 3,749	$ 6,702
Contract receivables, net	11,749	10,494
Prepaid expenses and other current assets	1,478	1,554
Total current assets	16,976	18,750
Equipment, software and leasehold improvements, net of accumulated depreciation of $4,891 and $4,816	694	616
Software development costs, net	605	630
Goodwill	13,339	13,339
Intangible assets, net	3,893	4,234
Operating lease right-of-use assets, net	1,413	1,562
Other assets	59	59
Total assets	36,979	39,190
Current liabilities:
Line of credit	2,506	3,006
PPP Loan, current portion	8,832	5,034
Accounts payable	739	570
Accrued expenses	1,462	1,297
Accrued compensation	2,257	1,505
Billings-in-excess of revenue earned	4,947	5,285
Accrued warranty	587	665
Income taxes payable	1,549	1,621
Other current liabilities	1,596	2,498
Total current liabilities	24,475	21,481
PPP Loan, noncurrent portion	1,260	5,034
Operating lease liabilities noncurrent	1,565	1,831
Other noncurrent liabilities	263	339
Total liabilities	27,563	28,685
Commitments and contingencies (Note 16)
Stockholders' equity:
Preferred stock $.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, 22,233,283 and 22,192,569 shares issued, 23,832,194 and 20,593,658 shares outstanding, respectively	222	222
Additional paid-in capital	79,697	79,687
Accumulated deficit	(67,396)	(65,191)
Accumulated other comprehensive loss	(108)	(1,214)
Treasury stock at cost, 1,598,911 shares	(2,999)	(2,999)
Total stockholders' equity	9,416	10,505
Total liabilities and stockholders' equity	$ 36,979	$ 39,190