Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 9,337	$ 16,704
Accounts receivable	1,668	1,233
Prepaid expenses	445	370
Other current assets	16	0
Total current assets	11,466	18,307
Property and Equipment:
Equipment	2,259	1,453
Furniture and fixtures	43	43
Leasehold improvements	67	67
Property, plant and equipment, gross	2,369	1,563
Accumulated depreciation and amortization	(1,281)	(1,097)
Property and equipment, net	1,088	466
Finance leases, right-of-use assets, net	200	20
Operating leases, right-of-use assets, net	920	1,010
Other assets	169	79
Total non-current assets	2,377	1,575
TOTAL ASSETS	13,843	19,882
Current Liabilities:
Accounts payable, trade	1,361	408
Accrued expenses	854	628
Finance leases liabilities, current portion	71	21
Operating leases liabilities, current portion	709	487
PPP loan payable, current portion	0	421
Deferred revenue	1,170	177
Total current liabilities	4,165	2,142
Non-Current Liabilities:
PPP loan payable, noncurrent portion	0	212
Finance lease liabilities, noncurrent portion	93	0
Operating leases liability, noncurrent portion	1,600	1,867
Total non-current liabilities	1,693	2,079
Stockholders’ equity:
Common stock $0.01 par value: Authorized shares — 80,000 Issued shares — 17,631 in 2021 and 17,428 in 2020 Outstanding shares — 17,621 in 2021 and 17,418 in 2020	176	174
Common stock held in treasury, at cost – 10 shares	(362)	(362)
Additional paid-in capital	78,363	77,187
Accumulated deficit	(70,149)	(61,295)
Accumulated other comprehensive loss	(43)	(43)
Total stockholders’ equity	7,985	15,661
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 13,843	$ 19,882