Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities:
Net income	$ 2,045	$ 48
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	644	321
Non-cash lease expense	244	194
Restructuring costs	6	104
Provision for doubtful accounts and other adjustments to accounts receivable	(4)	(9)
Provision for excess and obsolete inventory		1
Loss on disposal of fixed assets		(1)
Stock based compensation	632	455
Changes in operating accounts:
Accounts receivable	(983)	(1,759)
Prepaid expenses and other assets	215	194
Accounts payable and accrued liabilities	(840)	(117)
Deferred revenue	302	(85)
Net cash provided by (used in) operating activities	2,261	(654)
Investing activities:
Capital expenditures	(771)	(110)
Other investing activities	(215)
Net cash used in investing activities	(13,136)	(4,084)
Financing activities:
Proceeds from exercise of common stock warrants	2,045
Dividends paid on preferred stock		(34)
Other financing activities	18	(9)
Net cash provided by (used in) financing activities	2,063	(43)
Net decrease in cash and cash equivalents	(8,812)	(4,781)
Cash and cash equivalents, beginning of period	28,268	12,159
Cash and cash equivalents, end of period	19,456	7,378
Supplemental disclosures of cash flow information:
Cash paid for income taxes	19	9
Supplemental disclosures of non-cash activities:
Issuance of common stock in connection with Smart Retail acquisition		5,129
Smart Retail [Member]
Investing activities:
Acquisition of Smart Retail business and Circle operator business, net		$ (3,974)
Circle Operator [Member]
Investing activities:
Acquisition of Smart Retail business and Circle operator business, net	$ (12,150)