CONSOLIDATED BALANCE SHEETS - (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 33,581	$ 31,994
Restricted cash	1,513	1,511
Accounts receivable, net of allowance of $413 and $261 in 2016 and 2015, respectively	219	369
Income tax receivable	8	4
Inventories, net	11,228	9,199
Prepaid expenses and other current assets	3,998	2,905
Deferred commissions	3,969	3,443
Deferred tax assets, net	430	460
Total current assets	54,946	49,885
Property and equipment, net	3,617	3,848
Construction in progress	1,362	839
Long-term restricted cash	6,741	6,586
Other assets	3,878	3,759
Long-term deferred tax assets, net	3,766	3,725
Total assets	74,310	68,642
LIABILITIES AND SHAREHOLDERS' EQUITY
Current portion of capital leases	418	447
Accounts payable	5,617	2,683
Accrued expenses	4,698	6,221
Commissions and incentives payable	7,628	6,818
Taxes payable	1,489	736
Current deferred tax liability	85	84
Current notes payable	971	713
Deferred revenue	9,926	8,677
Total current liabilities	30,832	26,379
Capital leases, excluding current portion	518	612
Long-term deferred tax liabilities	6	24
Long-term notes payable	979	1,069
Other long-term liabilities	2,003	1,994
Total liabilities	$ 34,338	$ 30,078
Commitments and contingencies
Shareholders' equity:
Preferred stock, $0.01 par value, 1,000,000 shares authorized, no shares issued or outstanding	$ 0	$ 0
Common stock, $0.0001 par value, 99,000,000 shares authorized, 2,773,972 shares issued and 2,696,986 shares outstanding as of March 31, 2016 and 2,773,972 shares issued and 2,682,078 shares outstanding as of December 31, 2015	0	0
Additional paid-in capital	38,904	40,494
Retained earnings	9,180	8,589
Accumulated other comprehensive income	1,273	686
Treasury stock, at average cost, 76,986 shares as of March 31, 2016 and 91,894 shares as of December 31, 2015, respectively	(9,385)	(11,205)
Total shareholders' equity	39,972	38,564
Total liabilities and shareholders' equity	$ 74,310	$ 68,642