UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 6,079	$ 4,100
Accounts receivable	1,174	1,034
Prepaid expenses	648	356
Total current assets	7,901	5,490
Property and Equipment:
Equipment	2,677	2,517
Furniture and fixtures	43	43
Leasehold improvements	67	67
Property and equipment	2,787	2,627
Accumulated depreciation and amortization	(1,713)	(1,567)
Property and equipment, net	1,074	1,060
Finance leases, right-of-use assets, net	1,543	1,709
Operating leases, right-of-use assets, net	733	808
Other assets	165	166
Total noncurrent assets	3,515	3,743
TOTAL ASSETS	11,416	9,233
Current Liabilities:
Accounts payable, trade	807	718
Accrued expenses	896	534
Finance leases liabilities, current portion	647	644
Operating leases liabilities, current portion	1,035	935
Notes payable, current portion	2,859	0
Deferred revenue	337	560
Total current liabilities	6,581	3,391
Non- Current Liabilities:
Notes payable, noncurrent portion	1,783	0
Finance lease liabilities, noncurrent portion	663	673
Operating leases liability, noncurrent portion	1,087	1,250
Total non-current liabilities	3,533	1,923
Stockholders’ equity:
Preferred Stock $0.01 par value: Authorized shares – 5,000 Issued shares – 0 in 2022 and 2021	0	0
Common stock, $0.01 par value: Authorized shares — 80,000 Issued shares — 19,474 in 2022 and 19,135 in 2021 Outstanding shares — 19,464 in 2022 and 19,125 in 2021	195	191
Common stock held in treasury, at cost – 10 shares	(362)	(362)
Additional paid-in capital	85,663	84,230
Accumulated deficit	(84,151)	(80,097)
Accumulated other comprehensive loss	(43)	(43)
Total stockholders’ equity	1,302	3,919
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 11,416	$ 9,233