CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 9,992	$ 13,389
Accounts receivable, net of allowance for doubtful accounts of $212 and $245, respectively	12,775	16,454
Inventories, net	28,977	25,104
Net investment in leases, current, net of allowance for doubtful accounts of $78 and $40, respectively	3,379	2,989
Prepaid expenses	2,322	1,533
Other current assets	3,044	2,938
Total current assets	60,489	62,407
Property and equipment, net	15,318	15,981
Operating lease right-of-use assets	6,092
Goodwill	27,190	26,679
Other intangible assets, net	9,526	9,764
Deferred tax asset, net	15,920	14,121
Net investment in leases, non-current	13,033	11,908
Investments in unconsolidated affiliates	7,711	8,018
Other non-current assets	7,565	7,574
Total assets	162,844	156,452
Current liabilities:
Accounts payable	7,330	7,469
Due to – related parties	0	226
Accrued liabilities	3,755	10,142
Current operating lease liabilities	1,685
Current portion of deferred revenue, and other	2,615	2,526
Total current liabilities	15,385	20,363
Deferred revenue, net of current portion	6,442	7,082
Line of credit	12,750	6,000
Non-current operating lease liabilities	4,819
Other liabilities	196	598
Total liabilities	39,592	34,043
Commitments and contingencies
Redeemable non-controlling interest and mezzanine equity	330	0
Stockholders' equity:
Preferred stock, $.01 par value, 2,500,000 and 2,500,000 shares authorized, respectively, 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, 7,794,271 and 7,675,692 shares issued and outstanding, respectively	78	77
Additional paid-in capital	256,952	257,034
Accumulated other comprehensive income	298	277
Accumulated deficit	(134,406)	(134,979)
Total stockholders' equity	122,922	122,409
Total liabilities, mezzanine equity and stockholders' equity	$ 162,844	$ 156,452