CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,383	$ 10,525
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	3,473	3,586
Deferred income tax (benefit) expense	(1,997)	762
Stock-based compensation	3,774	2,093
Other (income) expense	(2)	7
Changes in operating assets and liabilities:
Accounts receivable	2,075	7,376
Inventories	3,935	(10,490)
Due from related parties	1	78
Lease receivable, current	(708)	(991)
Other current assets	(778)	(341)
Accounts payable	(4,945)	1,835
Due to related parties	(1,422)	1,145
Accrued liabilities and other	6,102	(3,046)
Lease receivable, non-current	(1,906)	(3,985)
Other non-current assets	(1,256)	(620)
Deferred revenue and other	(2,271)	(1,656)
Net cash provided by operating activities	6,458	6,278
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of minority interest	0	(13,757)
Investments in unconsolidated affiliates	(8,089)	0
Purchases of property and equipment	(1,061)	(1,998)
Proceeds from disposition of property and equipment	24	6
Net cash used in investing activities	(9,126)	(15,749)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	3,627	2,287
Repurchase of common stock	(1,241)	(860)
Proceeds from line of credit borrowings	3,000	40,307
Repayments of line of credit borrowings	(3,000)	(34,666)
Distributions to non-controlling interest members	(126)	(963)
Repayments of other debt	(5)	(78)
Net cash provided by financing activities	2,255	6,027
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(10)	73
DECREASE IN CASH AND CASH EQUIVALENTS	(423)	(3,371)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	9,659	10,794
CASH AND CASH EQUIVALENTS, END OF PERIOD	9,236	7,423
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Non-cash transfers of equipment between inventory and property and equipment, net	$ 1,019	$ 824