CONSOLIDATED BALANCE SHEETS - (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 36,921	$ 31,994
Restricted cash	1,512	1,511
Accounts receivable, net of allowance of $441 and $261 in 2016 and 2015, respectively	116	369
Income tax receivable	13	4
Inventories, net	11,714	9,199
Prepaid expenses and other current assets	2,512	2,905
Deferred commissions	4,208	3,443
Deferred tax assets, net	490	460
Total current assets	57,486	49,885
Property and equipment, net	3,388	3,848
Construction in progress	1,826	839
Long-term restricted cash	6,664	6,586
Other assets	3,687	3,759
Long-term deferred tax assets, net	3,986	3,725
Total assets	77,037	68,642
LIABILITIES AND SHAREHOLDERS' EQUITY
Current portion of capital leases	397	447
Accounts payable	6,427	2,683
Accrued expenses	5,383	6,221
Commissions and incentives payable	8,805	6,818
Taxes payable	1,301	736
Current deferred tax liability	85	84
Current notes payable	859	713
Deferred revenue	10,698	8,677
Total current liabilities	33,955	26,379
Capital leases, excluding current portion	430	612
Long-term deferred tax liabilities	26	24
Long-term notes payable	843	1,069
Other long-term liabilities	2,084	1,994
Total liabilities	37,338	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 2,706,986 shares outstanding as of June 30, 2016 and 2,773,972 shares issued and 2,682,078 shares outstanding as of December 31, 2015	0	0
Additional paid-in capital	37,825	40,494
Retained earnings	7,849	8,589
Accumulated other comprehensive income	2,190	686
Treasury stock, at average cost, 66,986 shares as of June 30, 2016 and 91,894 shares as of December 31, 2015, respectively	(8,165)	(11,205)
Total shareholders' equity	39,699	38,564
Total liabilities and shareholders' equity	$ 77,037	$ 68,642