CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss) income	$ (3,386)	$ 1,783
(Income) loss from discontinued operations	(224)	720
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Insurance recovery of investment	0	(771)
Depreciation, amortization, and accretion	4,033	4,624
Provision for bad debts	303	401
Provision for obsolete inventory	1,543	1,249
Equity based compensation	651	469
Change in fair value of contingent consideration	(1,000)	(1,130)
Deferred income tax	4,159	708
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	325	(1,576)
Inventories	2,948	(5,987)
Income tax receivable/(payable)	261	(540)
Other current assets	(182)	(248)
Other assets	(522)	(194)
Accounts payable	(2,355)	4,958
Accrued expenses	49	(2,023)
Customer deposits and deferred service revenue	(6,905)	8,995
Other long-term liabilities	154	(41)
Deferred tax equity based compensation	0	(45)
Net cash (used in) provided by operating activities-continuing operations	(148)	11,352
Net cash provided by (used in) operating activities-discontinued operations	462	(356)
Net cash provided by operating activities	314	10,996
Cash flows from investing activities:
Capital expenditures	(5,071)	(3,433)
Capitalization of software costs	(3,786)	(2,685)
Working capital adjustment paid	0	(977)
Net cash used in investing activities	(8,857)	(7,095)
Cash flows from financing activities:
Payments of long-term debt	(187)	(181)
Payments of other borrowings	(22,200)	(214,980)
Proceeds from other borrowings	23,150	214,980
Payments for deferred acquisition obligations	0	(2,000)
Proceeds from note receivable	3,794	0
Proceeds from stock awards	1,500	27
Net cash provided by (used in) financing activities	6,057	(2,154)
Effect of exchange rate changes on cash and cash equivalents	31	(716)
Net (decrease) increase in cash and cash equivalents	(2,455)	1,031
Cash and cash equivalents at beginning of period	9,055	8,024
Cash and cash equivalents at end of period	6,600	9,055
Cash paid during the period for:
Interest	152	94
Income taxes, net of refunds	20	714
Supplemental disclosures of non-cash information:
Adoption of accounting standard on deferred taxes	$ 578	$ (578)