CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Cash flows from operating activities:
Net (loss) income	$ (2,729)	$ 68
Adjustments to reconcile net (loss) income to net cash used in operating activities:
Depreciation, amortization and accretion	1,012	1,062
Provision for bad debts	107	100
Provision for obsolete inventory	588	696
Equity based compensation	248	181
Deferred income tax	0	(78)
Changes in operating assets and liabilities:
Accounts receivable	(3,199)	(5,934)
Inventories	(490)	(1,344)
Other current assets	(1,848)	(1,102)
Other assets	(240)	(84)
Accounts payable	2,150	3,205
Accrued salaries and benefits	(795)	(879)
Accrued expenses	110	(142)
Customer deposits and deferred service revenue	2,089	2,015
Other long-term liabilities	(213)	(307)
Net cash used in operating activities	(3,210)	(2,543)
Cash flows from investing activities:
Capital expenditures	(887)	(568)
Capitalization of software costs	(1,036)	(1,102)
Net cash used in investing activities	(1,923)	(1,670)
Cash flows from financing activities:
Payments of long-term debt	0	(48)
Payment of contingent consideration for Brink Earn Out	(2,550)	0	$ (3,000)
Payments of other borrowings	(16,777)	(2,000)
Proceeds from other borrowings	25,097	5,000
Proceeds from stock options	30	0
Net cash provided by financing activities	5,800	2,952
Effect of exchange rate changes on cash and cash equivalents	(10)	423
Net increase (decrease) in cash and cash equivalents	657	(838)
Cash and cash equivalents at beginning of period	3,485	6,600	6,600
Cash and equivalents at end of period	4,142	5,762	$ 3,485
Cash paid during the period for:
Interest	115	75
Income taxes, net of refunds	0	$ 0
Additions to right-of-use assets and deferred rent obtained from operating lease liabilities	$ 3,717