Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities:
Net loss	$ (3,903)	$ (465)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	79	52
Stock-based compensation	204	19
Noncash lease costs	61	63
Changes in operating assets and liabilities:
Accounts receivable	(73)	534
Prepaid expenses and other assets	(414)	(17)
Accounts payable and accrued expenses	489	(96)
Deferred revenue	(31)	(232)
Net cash used in operating activities	(3,588)	(142)
Investing Activities:
Purchases of property and equipment	(195)	(40)
Net cash used for investing activities	(195)	(40)
Financing Activities:
Proceeds from stock options exercised	161	75
Reduction of finance lease liability	(10)	(10)
Net cash provided by financing activities	151	65
Net decrease in cash and cash equivalents	(3,632)	(117)
Cash and cash equivalents at beginning of period	16,704	3,334
Cash and cash equivalents at end of period	13,072	3,217
SUPPLEMENTAL DISCLOSURE OF NON CASH FINANCING ACTIVITIES:
Assets acquired under a ROU operating lease	$ 31	$ 0