CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 9,101	$ 13,389
Accounts receivable, net of allowance for doubtful accounts of $259 and $245, respectively	16,202	16,454
Inventories, net	27,388	25,104
Net investment in leases, current, net of allowance for doubtful accounts of $40 and $40, respectively	3,225	2,989
Other current assets	4,620	4,471
Total current assets	60,536	62,407
Property and equipment, net	15,511	15,981
Operating lease right-of-use assets	6,414
Goodwill	27,311	26,679
Other intangible assets, net	9,923	9,764
Deferred tax asset, net	15,176	14,121
Net investment in leases, non-current	12,615	11,908
Investments in unconsolidated affiliates	7,837	8,018
Other non-current assets	7,457	7,574
Total assets	162,780	156,452
Current liabilities:
Accounts payable	7,746	7,469
Due to – related parties	0	226
Accrued liabilities	10,647	10,142
Current operating lease liability	1,693
Current portion of deferred revenue, and other	2,704	2,526
Total current liabilities	22,790	20,363
Deferred revenue, net of current portion	6,728	7,082
Line of credit and other long-term borrowings	6,026	6,031
Non-current operating lease liability	5,122
Other liabilities	175	567
Total liabilities	40,841	34,043
Commitments and contingencies
Redeemable non-controlling interest and mezzanine equity	662	0
Stockholders' equity:
Preferred stock, $.01 par value, 2,500,000 shares authorized, none issued or outstanding	0	0
Common stock, $.01 par value, 10,250,000 and 10,250,000 shares authorized, respectively, none issued or outstanding	0	0
Public common stock, $.01 par value, 10,250,000 and 10,250,000 shares authorized, 7,746,602 and 7,675,692 shares issued and outstanding, respectively	77	77
Additional paid-in capital	255,150	257,034
Accumulated other comprehensive income	215	277
Accumulated deficit	(134,165)	(134,979)
Total stockholders' equity	121,277	122,409
Total liabilities, mezzanine equity and stockholders' equity	$ 162,780	$ 156,452