CONSOLIDATED BALANCE SHEETS $ in Thousands	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Current assets:
Cash and cash equivalents	$ 9,659	$ 10,794
Accounts receivable, net of allowance for doubtful accounts of $215 and $237, respectively	15,710	20,857
Due from – related parties	1	100
Inventories, net	32,596	20,395
Lease receivable, current	2,069	825
Other current assets	2,877	2,302
Total current assets	62,912	55,273
Property and equipment, net	17,331	16,581
Goodwill	26,687	26,647
Other intangible assets, net	1,958	2,346
Deferred tax asset, net	11,877	21,122
Lease receivable, non-current	9,615	4,833
Other non-current assets	5,407	4,042
Total assets	135,787	130,844
Current liabilities:
Accounts payable	9,489	6,343
Due to – related party	1,828	1,578
Accrued liabilities	4,417	5,581
Current portion of deferred revenue	3,992	3,560
Obligation to purchase minority interest	0	14,602
Line of credit and other short-term borrowings	6,000	750
Total current liabilities	25,726	32,414
Deferred revenue, net of current portion, and other	9,621	11,455
Total liabilities	35,347	43,869
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value, 2,500,000 shares authorized, none issued or outstanding	0	0
Common stock, $.01 par value, 10,000,000 shares authorized, none issued or outstanding	0	0
Public common stock, $.01 par value, 10,000,000 shares authorized, 7,302,954 and 7,026,051 shares issued and outstanding, respectively	73	70
Additional paid-in capital	243,598	238,635
Accumulated other comprehensive income	232	97
Accumulated deficit	(143,463)	(151,827)
Total stockholders' equity	100,440	86,975
Total liability and stockholders' equity	$ 135,787	$ 130,844