CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (2,205)	$ (6,258)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Loss on impairment	0	4,302
Depreciation	76	108	$ 108
Amortization of intangible assets	340	670
Amortization of capitalized software development costs	97	75
Amortization of deferred financing costs	3	0
Stock-based compensation expense	38	147
Bad debt expense	4	93
(Gain) loss on derivative instruments, net	0	43
Deferred income taxes	0	57
Changes in assets and liabilities:
Contract receivables, net	(1,259)	3,453
Prepaid expenses and other assets	(1,737)	525
Accounts payable, accrued compensation and accrued expenses	1,111	(121)
Billings-in-excess of revenue earned	(340)	(1,220)
Accrued warranty	(156)	(26)
Other liabilities	2,070	(207)
Net cash (used in) provided by operating activities	(1,958)	1,641
Cash flows from investing activities:
Capital expenditures	(153)	(1)
Capitalized software development costs	(72)	(61)
Net cash used in investing activities	(225)	(62)
Cash flows from financing activities:
Proceeds from line of credit	0	3,500
Repayment of line of credit	(500)	0
Payment of insurance premium	(203)	0
Repayment of long-term debt	0	(5,162)
Shares withheld to pay taxes	(28)	(51)
Net cash used in financing activities	(731)	(1,713)
Effect of exchange rate changes on cash	(39)	(197)
Net decrease in cash and cash equivalents	(2,953)	(331)
Cash, cash equivalents at beginning of the period	6,702	11,691	11,691
Cash and cash equivalents at the end of the period	$ 3,749	$ 11,360	$ 6,702